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  • Articles  (837)
  • Wiley-Blackwell  (837)
  • American Chemical Society
  • American Institute of Physics (AIP)
  • 2020-2022
  • 1990-1994
  • 1970-1974  (837)
  • 1971  (837)
  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (837)
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  • Articles  (837)
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  • 2020-2022
  • 1990-1994
  • 1970-1974  (837)
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  • 1
    Electronic Resource
    Electronic Resource
    Comments on “an analytical solution to tung's axial dispersion equation. Applications in gel permeation chromatography” (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 247-250 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150121
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  • 2
    Electronic Resource
    Electronic Resource
    Permeability of polyethylene film to organic vapors (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 327-339 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The permeabilities of polyethylene film to vapors of 19 organic compounds at temperatures of 21°C, 38°C, and 49°C were measured by a sorption method. The film was formed into a pouch, which was filled with silica gel, sealed, and suspended in a saturated atmosphere. The permeability was calculated from the steady-state rate of the gain in weight. The permeability data were correlated with the Hildebrand solubility parameters of the organic substances.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150207
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  • 3
    Electronic Resource
    Electronic Resource
    Flow of viscous fluid through a circular aperture (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 369-379 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The creeping flow of a highly viscous incompressible fluid through a circular aperture located in an infinitely wide horizontal plate is analyzed by solving Navier-Stokes equations without inertia terms. Solutions for vertical and radial velocities as well as pressure have been obtained in terms of integral equations with an undetermined Kernal function. This function has been evaluated by assuming several different velocity distributions at the aperture, and the corresponding pressure drop for each case has been calculated. The results show that the pressure loss for a given flow rate goes through a minimum as the assumed velocity profile changes from flat to parabolic. Based on the minimum energy dissipation theorem of Helmholtz, the most appropriate velocity distribution is discussed. Experimental data obtained using sharp-edged orifices are compared with theoretical predictions.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150210
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  • 4
    Electronic Resource
    Electronic Resource
    Transport properties of eastman cellulose acetate membranes: Influence of diffusant size and shape on permeability (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 597-606 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Eastman cellulose acetate membranes (acetyl content = 40%) have been studied by means of dialysis rate experiments with uncharged permeants of selected sizes and shapes. The experimental results show that the high flux membranes exert no molecular size or shape selectivity on the transport of permeants whose molecular weights are less than 1152. The membranes used in desalination, however, are selective as to molecular size and shape. Desalination membranes, therefore, may be useful in separations where differences in size and shape are present.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150308
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  • 5
    Electronic Resource
    Electronic Resource
    The fracture toughness and stress corrosion cracking characteristics of an anhydride-hardened epoxy adhesive (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 641-659 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The toughness and stress corrosion cracking characteristics of an epoxy resin (DER 332) hardened with hexahydrophthalic anhydride (HHPA) were investigated. The epoxy was studied in both the bulk and bond form, and its properties were compared with an amine-hardened (tetraethylene pentamine, TEPA) system. The toughness, GIc, of the anhydride system varied less as a function of ratio of hardener-to-resin content and postcure temperature than it did in the TEPA-hardened system. Like the latter, however, its toughness in the bulk and bond forms could not be correlated, but GIc of the joints was dependent on tensile modulus and/or yield strength of the bulk epoxy. Both systems were also toughened in the vicinity of the crack tip by water for short-time loading, but their long-time load carrying capability was reduced by a water environment. The anhydride hardened system was more sensitive to strength loss in water than the amine system. The fracture morphology for the two systems was the same, i.e., fast cracking occurred cohesively near the center of the bond, and slow cracking occurred at the interface.
    Additional Material: 17 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150311
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  • 6
    Electronic Resource
    Electronic Resource
    Pyrolysis of treated rayon fiber (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 715-729 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The thermal decomposition behavior of rayon yarn which had been treated with various chlorosilanes and boron-phosphorus compounds was determined at temperatures up to 800°C. It was found that 70% of the available hydroxyl groups in rayon would react with dichlorodiphenylsilane and that the treated yarn had an initial decomposition temperature 125°C higher than that of untreated rayon. The weight loss of the treated yarn at 800°C was dependent on the nature of the chlorosilane and the type of posttreatment used. Alkylchlorosilanes produced higher weight losses than did the arylchlorosilane-treated rayons. Treatment of rayon yarn with bis(chlorodiphenyl-phosphine)decaborane (BCDPD) or dimeric chlorophospha(III)-o-carborane (DCPC) resulted in an increase in the char yield of the pyrolyzed yarns. In the case of untreated rayon, weight retention at 800°C was 20%, whereas the treated yarns yielded boronated residues of 42-53%. Carbon yields as high as 28% were obtained with the BCDPD treatment. This treatment also resulted in substantial improvement in the oxidative stability of rayon at temperatures up to 250°C.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150316
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  • 7
    Electronic Resource
    Electronic Resource
    Radiation protection of poly(vinyl chloride) by N-methyl dithiocarbamate substitution (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 747-758 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The effect of N-methyl dithiocarbamate substitution on the radiation stability of poly-(vinyl chloride) (PVC) films was studied. PVC containing between 2 and 11 mole-% N-methyl dithiocarbamate (PMD) was irradiated with γ-rays from a 60Co source at 40°C and the evolved gaseous products were measured and analyzed with a mass spectrometer. The apparent G values for gas evolution for PMD decreased remarkably. For example, a G value of 0.28 was obtained for a PMD which contains 11 mole-% dithiocarbamate group compared with a G value of 10.8 for unmodified poly(vinyl chloride). Furthermore, the mass spectrum of the evolved gas from the same PMD sample (PMD-44) with 10 Mrad irradiation showed no hydrogen chloride to be present. The external protection was studied using polymer-blended films of PVC and PMD-44. The stabilization coefficients for internal protection and external protection in polymer blends were calculated. The ESR spectrum of the irradiated PMD-44 showed a strong anisotropy with high g values which differed significantly from the spectrum of the irradiated PVC. A suggested mechanism for radiation protection of PVC against γ-rays irradiation by the N-methyl dithiocarbamate group is discussed.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150319
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  • 8
    Electronic Resource
    Electronic Resource
    A rationale for the preparation of Loeb-Sourirajan-type cellulose acetate membranes (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 811-828 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: An attempt has been made to rationalize the variables in the preparation procedure of Loeb-Sourirajan-type reverse-osmosis membranes. The quaternary phase diagram of the system cellulose acetate-acetone-formamide-water was determined and has proved a useful tool in the discussion of membrane structures and properties. A mechanism based on differences in the precipitation rate of the polymer during the membrane formation process has been suggested to explain the observed asymmetry in the membrane structure. The porosity of the membrane has been ascribed to the relative rates of water entering and solvent leaving the cast film. The effects of the casting solution composition, the evaporation time, the wash bath temperature, and the annealing procedure have been studied. X-Ray diffraction and electron microscopy were used to supplement flux and retention data of membranes made from a cellulose acetate-formamide-acetone casting solution.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150404
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  • 9
    Electronic Resource
    Electronic Resource
    Effect of surface characteristics on polymer growth on titanium trichloride catalyst (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 889-912 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Large sublimed leaflets of titanium trichloride have been observed over a wide range of magnification both by optical and electron microscopy under conditions such that ethylene polymerization was slow enough so that its progress could be observed in detail. After treatment with triethylaluminum, a network of cracks develops on which polymer grows upon introducing ethylene. Polymer also appears on steps, crushed areas, and cleaved edges but not on as-grown edges. The polymer appearing on lateral surfaces was nodular in character while that growing on basal surfaces was fibrous. The physical properties of these two forms may be different, and methods for favoring one or the other are suggested.
    Additional Material: 16 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150409
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  • 10
    Electronic Resource
    Electronic Resource
    Inhibitory action of phenols and amines in the photo-oxidation of tetralin (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 403-410 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The inhibitory efficiences of antioxidants (phenols and aromatic amines) were determined under irradiation for elucidation of their behavior in photo-oxidation. We determined the ratio of termination rate constant to propagation rate constant and compared the ratio under irradiation with that in the dark. Phenols are classified into two categories with respect to their behavior under irradiation. The first is as antioxidants that have the same ratios under both conditions; the second, as antioxidants that have smaller ratios under irradiation than in the dark. We assumed the smaller ratios to be due to the following: quinones formed via the excited state of phenols by light absorption, in addition to the original phenols, participate in radical capture. Aromatic amines were also classified into two categories relative to their behavior under irradiation.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150213
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  • 11
    Electronic Resource
    Electronic Resource
    The synergistic effect of benzhydrylation and iodination of the flammability of alpha-cellulose (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 419-435 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Cellulose samples modified by iodination, benzhydrylation, and benzhydrylation followed by iodination were pyrolyzed to investigate the potential flame retardance of such treatments. Their effect on crystallinity, rate of thermal degradation, char production, and pyrolysis products was determined. Results indicate that in general the crystallinity index varies inversely with the percentage of substitution, rate of weight loss, and amount of residual char. Although the rates of weight loss of the substituted samples increased from 0.3%/min to 108%/min, depending on the type and percentage of substitution, the overall weight loss pattern of the treated cellulose was similar to that of the untreated samples. Of the three treatments, iodination appears to offer the best flame retardance in that the residual char is increased by a much larger factor for a given weight loss rate. On the other hand, addition of the benzhydryl to the iodinated sample decreases the char. All three treatments drastically reduce the number of degradation products of molecular weights lower than 150; untreated cellulose gave 59 components, whereas the substituted cellulose produced five major compounds: water, acetic acid, furfural, 5-methyl-2-furaldehyde, and 1,5-anhydro-2,3-deoxy-β-D-pent-2-eno-furanose. Of these, water and the furanose derivatives were the major components.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150215
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  • 12
    Electronic Resource
    Electronic Resource
    Corona-induced autohesion of polyethylene (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1365-1375 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: If a low-density polyethylene sheet is treated in a corona discharge and subsequently pressed to a similarly treated sheet at 45°C, the bond formed is much stronger than that between similarly pressed but untreated sheets. Several series of observations have indicated that this enhanced autohesion is not due to surface oxidation or to surface crosslinking (CASING). Evidence is presented that the effect may be related to some type of electret formation induced in the polymer sheet by the corona discharge.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150607
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  • 13
    Electronic Resource
    Electronic Resource
    The effect of short-chain branch structure on the properties of low-density polyethylene (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1231-1235 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: In order to determine the effect of the molecular structure of short side branches in lowdensity polyethylene upon the physical properties of the resin, a study was carried out in which small amounts of various comonomers were added to an otherwise relatively unbranched polymer. It was found that linear short side branches have about the same effect in decreasing stiffness and increasing toughness as the natural short-chain branches of polyethylene have. However, branches containing a tert-butyl group increased resin toughness more than linear branches while decreasing stiffness by about the same amount. Thus, by adding a small amount of branched, short side branches, it is possible to obtain an optimum balance of physical properties not obtainable from low-density ethylene homopolymer.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150517
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  • 14
    Electronic Resource
    Electronic Resource
    Dispersion in gel permeation chromatography. A rapid numerical solution to Tung's integral equation (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1479-1492 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: A rapid iteration method has been developed to correct the molecular weight averages calculated from raw GPC data for dispersion. Though simple in its performance, it covers the general case that the instrumental spreading characteristics (Tung's resolution factor h) depend on the elution volume. Moreover, it is irrelevant whether the calibration curve, being the logarithmic plot of the molecular weight versus the elution volume, is linear or not. The method has been applied to a number of well-characterized polystyrene mixtures and yields molecular weight averages which agree with those predicted theoretically. The effect of asymmetry exerted by the dispersion on both molecular weight averages M̄n and M̄w is also discussed.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150615
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  • 15
    Electronic Resource
    Electronic Resource
    Poly(ethylene sulfide). IV. A rheological method for determination of “apparent molecular weight” (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1641-1648 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: By combining a number of theoretical relationships concerning the effect of molecular weight on melt rheology, an equation may be derived for conversion of melt indexer flow rate to “apparent molecular weight.” In spite of certain evident theoretical shortcomings of this derivation, the method was applied to the determination of the molecular weight of highly crystalline insoluble poly(ethylene sulfide), for which no other method appeared to be satisfactory. When applied to polymer specimens of presumably known molecular weight (e.g., certain ionically initiated specimens), reasonable agreement was found.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150707
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  • 16
    Electronic Resource
    Electronic Resource
    Structure-concentration equivalence in carbon black reinforcement of elastomers. III. Application to tensile strength (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1679-1685 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Using carbon blacks of constant specific surface area and surface chemical characteristics, but differing in degree of structure, it is shown that tensile strength, elongation at break and rupture energy are functions of the product av2, where v2 is the volume concentration of carbon black and a is a structure dependent factor. Moreover, reductions of failure data to a common effective filler concentration are accomplished with the identical structure factors used earlier in modulus reductions. The values of the structure factors are linearly related to the dibutyl phthalate (DBP) absorption of carbon black, when care is taken to equalize the packing density prior to conducting the DBP test.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150711
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  • 17
    Electronic Resource
    Electronic Resource
    The instrument spreading correction in GPC. III. The general shape function using singular value decomposition with a nonlinear calibration curvePresented in part at the Ninth International Seminar on Gel Permeation Chromatography, Miami Beach, Florida, October 1970. (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1687-1702 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The Gram-Charlier series was suggested as an empirical instrument spreading function in the first paper (part I) of this series. In the second paper (part II) of this series, the Fourier transform method was used together with the suggested series to solve Tung's integral equation. In this paper, an alternate method for solving Tung's equation is proposed which eliminates some of the limitations of the Fourier transform method. In the approach used in this study, Tung's integral equation is approximated by a set of linear equations. Since no unique least-squares solution can be computed, a closely related problem whose solution closely approximates the original problem is formulated and solved using singular value decomposition. By avoiding the use of the smallest singular values and forcing the equality of the areas of the corrected and the uncorrected chromatograms, an approximate solution to the original problem is obtained in which the oscillations inherently present due to the ill-posed nature of the problem are filtered out. The performance of the method with the experimental data given in Part II is indicated.
    Additional Material: 9 Ill.
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    URL: http://dx.doi.org/10.1002/app.1971.070150712
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  • 18
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    Electronic Resource
    Thermal conductivity of polymer melts (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1729-1736 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: A concentric cylinder conductivity cell with guard heaters was constructed and used to determine the thermal conductivity of polymer melts. Thermal conductivity was found to be a linear function of temperature for the melts studied, and the thermal conductivity decreased as the complexity of the polymer chain increased. The polymers studied were a linear polyethylene, branched polyethylene, polypropylene, polystyrene, nylon 6, and nylon 6,10. The measurements are precise to within ±6%.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1971.070150716
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  • 19
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    Preparation and purification of bisacid A2 (2,2-diphenylolpropane 4,4-dioxyacetic acid). II (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1753-1756 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: In an earlier communication1 the preparation of Bisacid A2 was described. This paper describes the attempts at spotting impurities in the products so obtained by subjecting them to thin-layer chromatography. No traces of impurities could be detected since no separation whatever was observed. Infrared spectra of pure Bisacid A2 were found to be identical with the spectrum of Nanu and Boboescu.2 It was also seen that the product obtained by the standard preparation in 70-73% yield with a minimum melting point of 173°C could not be demonstrably improved by esterification and rehydrolysis. Second crops from first mother liquors from the aqueous acetic acid recrystallization of the crude precipitated product of the condensation reaction (as well as ether extracts from these mother liquors) showed that both contained material with phenolic OH groups. These are the inpurities in the crude product which must be completely removed during purification if the final material is to be used for the synthesis of unsaturated polyester resins for ultimate use as crosslinked reinforced plastics, as alkyd varnish bases, or as fiber-forming saturated polyesters and polyamides. The need for adhering to the standard synthetic procedure was confirmed, in particular the need for multistage condensation, giving an effective yield of 70-73% of pure material
    Additional Material: 4 Ill.
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    URL: http://dx.doi.org/10.1002/app.1971.070150719
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  • 20
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    The production of rubber-modified polystyrene. I. Rheological behavior of the polymerizing system (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1649-1655 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The rheological behavior of the two-phase systems consisting of a polystyrene-in-styrene phase distributed in a rubber-in-styrene phase is shown to exhibit increasing non-Newtonian behavior up to the phase inversion point, as a consequence of its two phase nature. The equation \documentclass{article}\pagestyle{empty}\begin{document}$$ \log \frac{\mu }{{\mu _c }} = 2.5\left( {\frac{{\mu _d + a\mu _c }}{{\mu _d + \mu _c }}} \right)\left( {\phi + \phi ^{{\raise0.7ex\hbox{$5$} \!\mathord{\left/ {\vphantom {5 3}}\right.\kern-\nulldelimiterspace} \!\lower0.7ex\hbox{$3$}}} + \phi ^{{\raise0.7ex\hbox{${11}$} \!\mathord{\left/ {\vphantom {{11} 3}}\right.\kern-\nulldelimiterspace} \!\lower0.7ex\hbox{$3$}}} } \right) $$\end{document} is recommended for the prediction of the viscosity of the polymerizing mass up to phase inversion during the production of HIPS by the in situ bulk polymerization of styrene in the presence of dissolved rubber.
    Additional Material: 3 Ill.
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    A moderately high shear viscometer for measuring low specific viscosities (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1703-1708 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Notes: A simple, moderately high shear capillary viscometer which can be used up to a shear rate of 150,0000 sec-1 is described. The use of a twin viscometer arrangement has eliminated the need of elaborate pressure control and adjustment units. Experimental results obtained by use of the viscometer to measure the specific viscosities of a charged colloid at two different shear rates are presented.
    Additional Material: 3 Ill.
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    Ionic reverse osmosis membranes of grafted polyethylene (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1665-1677 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Notes: Membranes of graft copolymers of polyethylene with poly(sodium styrene sulfonate), poly(4-vinylpyridinium methyl bromide), and poly(sodium acrylate) were prepared by using the technique of peroxide grafting. The reverse osmosis characteristics of the membranes were examined as a function of grafting yield. In these membranes, the grafting can be considered as a process of introducing ionic sites, and it depends on the conditions of the grafting reaction, such as monomer concentration and temperature. However, the overall reverse osmosis characteristic is not only dependent on the number of ionic sites introduced but also on the swelling capability of the membrane. Consequently, the salt rejection of grafted membrane of a fixed graft yield depends on the conditions of the grafting reaction. All grafted membranes which have grafting yields above a certain value behave as normal ionic polymer membranes, and their interrelationship of salt rejection and water permeability follow the general dependence found for ionic polymer membranes.
    Additional Material: 6 Ill.
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    Tensile response of polyacrylonitrile fibers during air heating (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1709-1715 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Notes: Axial stresses generated by polyacrylonitrile filaments heated in air at constant length and length changes of filaments heated at constant load were measured. Fibers subjected to loads less than about 0.1 gpd shrank in the temperature range from about 40°C to 160°C. At about 160°C they began to stretch. Fibers that stretched out again to about their original lengths stiffened temporarily before undergoing a further elongation. At a temperature where the oxidation reaction begins to proceed with appreciable rate, elongation was retarded and finally reversed. Shrinkage was recorded during isothermal heating at 270°C, and a final length was approached when the oxygen content approached about 10 wt-%. The tension generated when the fibers were restrained from shrinking increased as temperature increased to 160°C but dropped in the temperature range of 160° to 250°C. Tension again built up during isothermal oxidation at 270°C. In the case of one of the samples, the tension generated below 160°C exceeded the ultimate tensile strength of the fibers above 200°C. This condition leads to tensile failures when the filaments are heated in a steep thermal gradient. The tensile behavior of the filaments is discussed in terms of the helical molecular model.
    Additional Material: 4 Ill.
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    Relative thermophysical properties of some polyimides (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1717-1727 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Notes: A comparative thermogravimetric study of ten polyimide films of varying composition revealed that thermal and thermo-oxidative stability of the polymers increases directly with increasing imide content. Films degraded more rapidly in air than in vacuo; the insertion of connecting groups within the polymer repeat unit decreased stability in both environments. The effect of inserting “ladder-like” segments in the polymer structure did not enhance resistance to oxidation; but under vacuum, those segments probably operated beneficially in promoting the retention of the carbon-like residue. Infrared spectral measurements showed little loss of imide bands with progressive weight loss in air, indicating unit-by-unit degradation. Conversely, infrared spectra of films heated under vacuum conditions showed that progressive loss of imide bands occurred simultaneously with an increasing development of bands related to carbon-nitrogen double bonds. Dynamic heating under vacuum developed singularly uniform weight loss curves; however, concurrent mass-spectrographic analyses indicated two distinct reactions. Gaseous carbon monoxide and carbon dioxide species accounted for the major weight change, and their periods of maximum evolution occurred at different temperatures for each film. A subsequent minor weight loss period was associated with the liberation of hydrogen cyanide which maximized at the same temperature for all ten films.
    Additional Material: 13 Ill.
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    Copolymerization of ethylene with vinyl acetate. I. Effect of polymerization temperature on degree of branchingThis paper was presented in part at 160th National American Chemical Society Meeting, Chicago, Illinois, September 1970. (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1737-1742 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Notes: The degree of branching of a series of ethylene-vinyl acetate copolymers was found to be strongly dependent upon polymerization temperature. The copolymers were prepared by free-radical polymerization and had low molecular weights and molar ratios of ethylene: vinyl acetate greater than 3:1. Nuclear magnetic resonance and infrared studies showed that copolymers prepared at 150°C were highly branched and had little crystallinity. Branches were mainly alkyl groups on the polymethylene backbone segments. There was no evidence of δ-acetoxyalkyl branches. Long branches originating by intermolecular H abstraction from the acetylmethyl groups were also expected but could not be detected. These results were consistent with an intramolecular “backbiting” mechanism similar to that found in ethylene homopolymerizations. There was little or no participation by the vinyl acetate moiety in the branching scheme. Copolymers prepared at about 90°C had very few long or short branches and were more crystalline. Copolymers prepared between these temperatures had intermediate degrees of branching and crystallinity.
    Additional Material: 3 Ill.
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    Solubility parameters and some structural characteristics of chlorinated poly(vinyl chloride) (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1769-1775 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
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    Notes: Measurements of solubility parameters of a series of chlorinated poly(vinyl chloride) (CPVC) samples were carried out. A maximum value of solubility parameter occurs at a chlorine content of 63-65% and is related to optimum packing.
    Additional Material: 5 Ill.
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    Graft polymerization of some vinyl monomers onto acrylic rubber. I. Chain transfer and grafting reaction (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1791-1801 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
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    Notes: The grafting reactions of styrene (St), methyl methacrylate (MMA), and vinyl acetate (VAc) were investigated in the presence of n-butyl acrylate-acrylonitrile copolymer. Results showed that the nature of monomer and initiator were the major factors influencing the grafting activity. The grafting efficiency was 0.87 for St, 0.26 for MMA, and 0.18 for VAc under the most favorable conditions. Acrylic rubber reduced the rate of polymerization, and the retarding effect increased in the order St, MMA, VAc. The chain transfer constants for acrylic rubber were evaluated to be 4.8 × 10-4 for St, 1.27 × 10-3 for MMA, and 1.45 × 10-3 for VAc. The rate of polymerization and the grafting efficiency decreased with increasing acrylonitrile content in acrylic rubber, while the chain transfer constant of St for acrylic rubber remained practically unchanged.
    Additional Material: 6 Ill.
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    URL: http://dx.doi.org/10.1002/app.1971.070150723
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    Change of mixing state of polybutadiene rubber-polyolefin resin blend by remilling and heat treatment (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1819-1835 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Notes: The change of the mixing state of polybutadiene rubber-polyolefin resin blend resulting from remilling and heat treatment was studied. Polyolfin resins studied here were high-pressure polyethylene, low-pressure polyethylene, and polypropylene. As in case of polybutadiene rubber-general purpose polystyrene resin blend, we made use of the results obtained through hardness and compression modulus measurement and microscopic observation. Even in case of polybutadiene rubber-polyolefin resin blend, the change of mixing state and the softening phenomenon by remilling were observed. The hardening phenomenon by heat treatment of the sample softened by remilling was also observed at high polyolefin resin content. But at low polyolefin resin content, the hardness which had increased once often decreased as the heat treating time increased, and in some cases the nonremilled sample was observed to soften with heat treatment. These phenomena attendant on heat treatment show that the intrinsic nature of a heterogeneous blend system also appears in a microheterogeneous polymer blend system.
    Additional Material: 22 Ill.
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    The influence of chemical structure on the dynamic properties of sulfur-vulcanized, carbon black-reinforced natural rubber (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1855-1868 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Notes: A comparison is made of the composition and properties of the different rubber vulcanizate networks obtained by varying the ratio of sulfur to sulfenamide accelerator and by the thermal aging of vulcanizates containing predominantly polysulfide crosslinks. It is concluded that the changes in network structure which can take place, for example, during the service life of natural rubber tires are not the direct cause of failures of the type associated with rubber fatigue at high temperatures. However, a reduction in the total number of crosslinks can accelerate failure by increasing the amount of heat generated during flexing. More stable networks giving improved resistance to fatigue at high operating temperatures are obtained by the use of higher ratios of accelerator to sulfur than are conventionally employed.
    Additional Material: 4 Ill.
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    Bead-spring model of dilute polymer solutions: Continuum modifications and an explicit constitutive equation (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1903-1909 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
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    Notes: A continuum modification of the bead-spring (elastic dumbbell) theory of dilute solutions of linear macromolecules, recently introduced by Gordon and Schowalter, is used to obtain explicit constitutive equations for the stress and polarizability tensors. The stress constitutive equation, closely related to a semiempirical result obtained earlier by Spriggs, is superior in predictive capability to the constitutive equation obtained from the elastic dumbbell theory. Results are presented for steady shearing flow, large-amplitude oscillatory shearing, and stress relaxation following cessation of steady shearing and are compared with the results of the elastic and rigid dumbbell theories. In general, predictions are similar to those of the rigid dumbbell and thus are in qualitative agreement with experiment.
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    URL: http://dx.doi.org/10.1002/app.1971.070150809
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    Influence of hysteresis on tensile and fatigue failure in rubbers (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 1941-1948 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Notes: The failure criterion developed by Harwood et al. between energy input to break and hysteresis at break for amorphous rubbers has been related to the fatigue and cut growth properties of the rubber which are based on the tearing energy theory. It is found that the constant K in the hysteresis failure criterion is a function of the cut growth constant G and the inherent flaw size C0. The effect of adding fine particulate fillers to amorphous rubbers on the hysteresis and fatigue properties is considered and shown to be in agreement with the theory.
    Additional Material: 3 Ill.
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    Simultaneous interpenetrating networks (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2317-2319 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Additional Material: 1 Ill.
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    URL: http://dx.doi.org/10.1002/app.1971.070150921
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    GPC calibration for polymers of unknown composition and structure using a real-time computer (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2321-2333 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Notes: A computer technique ultimately yielding, from GPC data, both differential and integral molecular weight distributions of macromolecular products with unknown composition and structure has been worked out, based on a “universal” calibration method previously proposed by other authors to calculate average molecular weights. The technique involves as sole assumption the validity of the “universal” calibration for the kind of sample under investigation. The GPC output data are handled through a realtime computer program and punched on paper tape. Together with two experimental parameters of the polymer (average molecular weights, limiting flow number) and the “universal” calibration of the columns set, the tape is used as input for the off-line programming. Examples are presented, showing the accuracy which can be expected.
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    Viscoelastic properties of epoxy resin. I. Effect of prepolymer structure on viscoelastic properties (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2371-2380 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Notes: The intermolecular cyclization reaction is investigated in highly crosslinked epoxy systems, where diepoxides with different mobilities between terminal epoxy groups were crosslinked with ethylene diamine. Based on the measured values of the Clash-Berg 10-sec modulus in the rubbery region, the correlation between the mobility and the cyclization reactivity of the diepoxides is discussed. The epoxide with higher mobility is found to have a higher rubbery modulus than that with lower mobility, as was expected. This is tentatively explained by the difference in the reactivity of the formation of the 11-membered ring. Dynamic mechanical measurements were also run on a forced vibration apparatus. The higher β-transition peak of the polymer of bisphenol-A diglycidyl ether was interpreted in terms of its higher free volume as well as lower density and lower glassy modulus. The higher modulus in the glassy region of ethylene glycol diglycidyl ether-ethylenediamine was explained on the basis of hydrogen bonding.
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    Properties of poly(alkylene oxide) elastomers (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2417-2424 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
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    Notes: The catalyst comprised of triisobutylaluminum, zinc acetylacetonate, and water was used to prepare homopolymer of epichlorohydrin; copolymers of epichlorohydrin with propylene oxide, ethylene oxide, and allyl glycidyl ether; and terpolymers of epichlorohydrin, propylene oxide, and allyl glycidyl ether and of epichlorohydrin, ethylene oxide, and allyl glycidyl ether. The vulcanizates of these rubbers provide variations of stressstrain and dynamic properties, freeze point, hardness, and solvent resistance depending on the type and amount of comonomer. In general, these rubbers have excellent heat, ozone, and oxidation resistance as well as oil and solvent resistance.
    Additional Material: 4 Ill.
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    Chemorheological study of vulcanized rubbers under mechanical stress (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2453-2460 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
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    Notes: At lower than the glass transition temperature, the cleavage of the molecular chains of extended vulcanized rubbers will occur. The crosslinking density of vulcanized rubbers, which were placed at room temperature for about 4 hr in nitrogen atmosphere, increased about 17% after extension of 200% at -76°C. This may be due to the recombination of cleft chains, and this can be shown by the Maxwellian type of curves between crosslinking density and forced strain. Considering the decreasing proportion of crosslinking density by the radical acceptors included in the rubbers and the fact that crosslinking density increases because of recombination of cleft chains, this was attributed to the recombination of unstable chains produced by the added mechanical stimulus.
    Additional Material: 8 Ill.
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    Aromatic rings as cure sites for EPM elastomers (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2103-2114 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
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    Notes: Terpolymers of ethylene and propylene with 4-phenyl-, 4-o-tolyl, 4-p-tolyl, and 4-(1-naphthyl)-1-butenes were vulcanized with bisbenzylic halides in the presence of highly acidic clays. The halides include bischloromethyldurene, p-bischloromethylbenzene, and p-bisbromomethylbenzene. Since the polymers contain no olefinic unsaturation, the crosslinking is achieved by electrophilic attack of the halide on the pendant aromatic rings. The order of activity is naphthyl 〉 tolyl 〉 phenyl. The new curing system also reacts with olefinic unsaturation. Thus, an EPDM elastomer and SBR rubber, the latter containing both aromatic rings and double bonds, were also readily crosslinked.
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    Ultraviolet stability of polyimides and polyamide-imides (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2123-2140 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
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    Notes: The ultraviolet stability of polyimides and polyamide-imides was determined in both a wet and dry environment. Films have been exposed to these environments for 3000 and 6000 hr, respectively. The polymers are not stable to UV radiation (2900-4000 Å); serious deterioration of the mechanical properties occurs under both wet and dry conditions with the former giving rise to greater damage. The polyamide-imide polymer is more unstable to UV radiation than the two polyimides evaluated; however, it is more resistant to hydrolysis as indicated from rate data obtained from a kinetic analysis of the mechanical property degradation curves. The electrical properties of the polymers are relatively unaffected in the dry environment but begin to deteriorate as the polymer becomes brittle. In the wet environment these properties begin to deteriorate more rapidly. Dissipation factor and dielectric strength are the properties most affected.
    Additional Material: 13 Ill.
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    The mechanism of liquid transport through swollen polymer membranes (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2199-2210 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Notes: The pressure-driven transport of liquids employed in reverse osmosis has been shown to occur by a solution-diffusion mechanism in highly swollen polymer membranes. A theory based on this mechanism was successfully used earlier to correlate permeation fluxes for such membranes. Positive confirmation of this theory is provided here by direct measurement of the proposed concentration gradient. A study of the temperature dependence of the liquid diffusion coefficient in the polymer membrane has provided additional evidence of a hydrodynamic regime of diffusion in highly swollen membranes. It is also shown that the proposed ceiling flux in reverse osmosis is equal to the pervaporation flux.
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    Hydroboration of diene polymers (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2219-2236 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Notes: Diene polymers (i.e., polyisoprene, polybutadiene, and butadiene - styrene copolymers) were hydroxylated in tetrahydrofuran by hydroboration with diborane and subsequent alkaline oxidative hydrolysis. The strong, broad infrared absorption of the product at 3340 cm-1 shows the introduction of hydroxyl group. The properties of hydroxylated diene polymers depend upon the extent of hydroxylation. The less hydroxylated polymers are rubbery. As the extent of hydroxylation increases, the product becomes a white thermoplastic which is soluble in alcohol. The hydroboration of diene polymers with diborane is very rapid. However, if the reaction is continued further, the extent of hydroxylation decreases because of side reactions. The results of acetylation and formylation of the hydroxylated products and the grafting of vinyl monomers onto hydroborated diene polymers are also presented.
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    Measurement of the rheological properties of polymer melts with slit rheometer. I. Homopolymer systems (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2567-2577 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Two slit dies have been designed, having aspect ratios of 10 and 20. Three melt pressure transducers were flush-mounted on the long side of the rectangular slot, along the longitudinal centerline of each die. The dies were then used to measure wall normal stresses along the longitudinal direction of polymer melts flowing through the thin slit. The polymeric materials investigated were high-density polyethylene, low-density polyethylene, polypropylene, and polystyrene. The measurement of wall normal stresses were used to determine the rheological properties of melts, namely, the melt viscosity from the slope of axial pressure profiles and the melt elasticity from exit pressures. The present study shows that the rheological properties determined from the slit rheometer are in good agreement with those from the capillary rheometer reported in the author's earlier papers. Therefore it may be concluded that a slit die also may be used as a means of characterizing polymeric materials by their viscous and elastic properties in the molten state.
    Additional Material: 11 Ill.
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    URL: http://dx.doi.org/10.1002/app.1971.070151022
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    On the hydrogen bonds in the helical structure proposed for cellulose I (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2597-2599 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Additional Material: 2 Tab.
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    URL: http://dx.doi.org/10.1002/app.1971.070151025
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    Aminimides. XI. Modified polystyrenes containing pendent aminimide or isocyanate residuesPresented in part at the Division of Organic Coatings and Plastics Chemistry of the 161st National Meeting of the American Chemical Society, Los Angeles, California, March 1971. (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2609-2621 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The hydrochloride salt of 1,1-dimethyl-1-(2-hydroxypropyl)amine methacrylimide (DHA) was synthesized and shown to readily homo- and copolymerize with styrene to produce soluble polymers containing pendent quaternary ammonium groups. These polymers may be treated with base to provide modified polystyrenes containing pendent aminimide residues. The latter polymers may be thermolyzed in solution or in the solid phase to produce modified polystyrenes containing pendent isocyanate groups. If the thermolysis is carried out in the presence of “isocyanate reactive” moieties, high molecular weight, crosslinked polymers may be synthesized. The reactivity ratios of DHA · HCl with styrene were determined: r1 = 0.33 and r2 = 0.35. The Alfrey-Price Q and e values were also calculated: Q = 0.88 and e = 0.67.
    Additional Material: 1 Ill.
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    URL: http://dx.doi.org/10.1002/app.1971.070151101
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    Influence of starch granule swelling on graft copolymer composition. A comparison of monomersPresented at the 162nd National Meeting of American Chemical Society, Washington, D. C., September 12-17, 1971. (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2651-2660 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Seven monomers, which varied widely in water solubility and ionic charge, were graft polymerized onto both unswollen starch and starch that had been swollen by heating in water to 60°C. Polymerizations were initiated with ferrous ammonium sulfate hexahydrate-hydrogen peroxide and, where applicable, with ceric ammonium nitrate. Graft copolymers were freed of ungrafted homopolymer by solvent extraction and were characterized by weight percentage of synthetic polymer incorporated in the graft copolymer, molecular weight of grafted branches, and grafting frequency. The influence of starch granule swelling on graft copolymer structure varied with the monomer used and could not be predicted on the basis of water solubility of monomer or its resulting polymer. With acrylonitrile and acrylamide, swollen starch gave higher molecular weight and less frequent grafts than unswollen starch. However, methyl methacrylate, N,N-dimethylaminoethyl methacrylate · HNO3, N-t-butylaminoethyl methacrylate. HNO3, and 2-hydroxy-3-methacryloyloxypropyltrimethylammonium chloride produced less frequent graft of higher molecular weight when starch was unswollen. With acrylic acid, graft molecular weight was independent of starch granule swelling, although grafting was less frequent when swollen starch was used.
    Additional Material: 6 Tab.
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    URL: http://dx.doi.org/10.1002/app.1971.070151105
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    Glass transition phenomenon in vinylidene chloride-acrylonitrile copolymers (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2687-2697 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Investigations of glass transition phenomena were carried out on vinylidene chloride - acrylonitrile copolymers, purified commercial samples of known composition. With a view to analyzing this effect, the following physical parameters were investigated: specific volume Vs,25, Tg, and volume expansion coefficients αL, αg, and Δα. The experimental results were analyzed on the basis of semiempirical and theoretical equations describing transitions to the glassy state. It was found that Tg dependence on weight fraction C2 of acrylonitrile may be described by Wood's equation, with k = 5.88. Applying Gibb's and Kanig's theories as well as relations given by Hirai and Small, the energies associated with intermolecular interactions (A*AB, E0, Eh, CED), and intramolecular interactions (stiffness energy ε) were calculated for copolymers of different composition. The copolymer Tg was found, above all, to depend on the stiffness energy ε, which increases with increasing acrylonitrile content in the copolymer.
    Additional Material: 12 Ill.
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    URL: http://dx.doi.org/10.1002/app.1971.070151109
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    Polymerization of styrene in an electrodeless glow discharge (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2277-2292 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The polymerization (polymer deposition) rate of styrene in an electrodeless glow discharge from styrene vapor and a mixture of styrene vapor and gas (H2, He, A, and N2) was investigated. The rate of polymerization, R, was found to be independent of the discharge power. The rate of polymerization of the pure monomer was found to be proportional to the square of monomer pressure pM. The addition of gas increased the rate of polymerization depending upon the partial pressure of the gas, px, and R can be generally expressed by R = a[pM]2{1 + b[px]}. The value of b is dependent of the type of gas and follows the order of N2, 〉 A 〉 He 〉 H2. The distribution of polymer deposition was found to be nearly independent of the partial pressure of the gas and of the discharge power with N2 and H2 as plasma gas; however, with He and A, the distribution is highly dependent on the partial pressure of the gas and on the discharge power. The study strongly suggests that polymerization occurs in the vapor phase and that the growing polymer radicals deposit on the surface of the discharge vessel, yielding highly crosslinked polymer deposition.
    Additional Material: 9 Ill.
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    URL: http://dx.doi.org/10.1002/app.1971.070150918
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    Shock pulse mitigation in various organic foams (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2303-2315 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The mechanical behavior of three kinds of organic foams, each at two different densities, was experimentally investigated under conditions of pulsed one-dimensional strain shock loading. The input pulse width in each experiment was nominally 0.1 μsec, and the input stress level (as referenced to quartz) was varied between 10 and 23 kbar. The materials studied were polyurethane foam at bulk densities of 0.33 and 0.21 g/cc, syntactic foam (phenolic microballoons dispersed in a resin binder) at 0.66 and 0.23 g/cc, and polystyrene bead foam at 0.091 and 0.049 g/cc. Specimen thicknesses varied between 1.0 and 6.5 mm. It was found that the pulse duration was greatly lengthened and that the peak stress was decreased (accounting for both impedance mismatch and attenuation effects) by factors of between about 8 and 500, depending upon the type of foam, its thickness, and its density.
    Additional Material: 6 Ill.
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    URL: http://dx.doi.org/10.1002/app.1971.070150920
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    Some aspects of PVC paste rheology (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2357-2369 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Using the Weissenberg rheogoniometer, a technique has been developed which facilitates the measurement of shear stress data and which substantially overcomes the problem of sample loss that normally occurs at high shear rates. Using this technique, the apparent viscosities of PVC pastes based upon four different PVC paste polymers plasticized with dialphyl phthalate have been determined at a number of shear rates up to 9000 sec-1 and the viscosity aging characteristics of these paste polymers have been compared. The effect of several common plasticizers upon PVC paste viscosity and viscosity aging have been studied at shear rates of the order of 10 sec-1 and 1000 sec-1.
    Additional Material: 6 Ill.
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    URL: http://dx.doi.org/10.1002/app.1971.070151004
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    Heat-resistant polymers containing the low molecular weight closo-carboranes. III. The preparation of polycarboranesiloxane polymers by alcoholysis (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2645-2650 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Notes: A new synthesis for carboranesiloxane polymers has been discovered. It involves the alcoholysis of the bischlorodimethylsilylcarborane monomers and the generation of the HCl catalyst in situ. Alcoholysis is applicable to the synthesis of most carborane-siloxane polymers, with the probable exception of the SiB-1 homopolymers of the larger carboranes. The attack of the B—H moieties in the carborane cage can be minimized both by the utilization of a tertiary alcohol and by the addition of excess acid when a primary alcohol is employed.
    Additional Material: 1 Ill.
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    URL: http://dx.doi.org/10.1002/app.1971.070151104
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    An approach to a simplified universal calibration for gel permeation chromatography (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2439-2445 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Criteria for establishing a universal GPC calibration for poly-1,2-butadiene on the basis of polystyrene standards are considered. The number-average molecular weights of the two polymers are related by a linear expression on the assumption that their respective Mark-Houwink exponents are equal. The coefficient Cn of this expression, determined from GPC and viscosity measurements, remained constant for a considerable range of molecular weights and polydispersities. The applicability of Cn beyond the interval of present measurements is considered on the basis of results in the literature. The results are comparable to those obtained from a universal calibration based on the unperturbed dimension of polymer chains, but do not agree with those obtained from a model based on extended length.
    Additional Material: 2 Ill.
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    URL: http://dx.doi.org/10.1002/app.1971.070151010
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    The secondary relaxation process of poly(vinyl chloride) and its derivativesPresented at the 7th Prague IUPAC Microsymposium on Macromolecules, Polyvinyl Chloride, Its Formation and Properties, September 7-10, 1970. (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 2447-2452 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The temperature dependence of the shear modulus G′ and of the damping tan δ of poly-(vinyl chloride), poly(vinylidene chloride), copolymers of vinyl chloride-vinylidene chloride, PVC chlorinated in solution and suspension, and chlorinated polyethylene was measured. Secondary relaxation process of PVC and its derivatives are being explained as vibration of methylene groups polarized by neighboring CCl dipoles. This process, being suppressed by lowering the concentration of the methylene groups in the PVC chain (e.g., by chlorination), remains, however, unaffected by the growth of crystalline content. The achieved results show that in the α-transition region there occurs, in accordance with Andrews' theory, a loosening of the bonds between the CCl dipoles, whereas in the β-transition region a loosening of the weaker bonds among the dipoles of the polarized methylene.
    Additional Material: 1 Tab.
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    URL: http://dx.doi.org/10.1002/app.1971.070151011
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    Tensile deformation of nylon 66 fibers at -196°C (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 15 (1971), S. 3109-3116 
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    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Nylon fibers tested in tension at -196°C show ductile strains up to 75%. The ductility is a complicated function of draw ratio, because decreasing work hardening with decreasing draw ratio leads to a point of instability where necking begins. The necks presumably initiate fracture, have the appearnce of cracks, and have been previously seen on fibers drawn in various organic liquids. Recovery experiments showed that molecular motions involved in low temperature deformation differ from those involved in ambient temperature deformation.
    Additional Material: 4 Ill.
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    URL: http://dx.doi.org/10.1002/app.1971.070151218
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    Albert G. Guy: Metallkunde für Ingenieure (deutsche Überarbeitung: Günther Petzow). Akademische Verlagsgesellschaft, Frankfurt 1970. 528 Seiten, 292 Abbildungen, 38 Tabellen. Preis DM 70,- (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 112-112 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020212
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    Das Zeitstandverhalten der Werkstoffe und die Grundlagen der Hochtemperatur-Plastizität (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 123-127 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Creep and Creep-Rupture Behaviour of Materials- and the Fundamentals of High Temperature Plasticity. Principles of evaluation methods for creep data (strain vs. time) for technological purposes as well as in fundamental research. Derivation and discussion of equations representing rupture-life and constant strain curves in creep rupture diagrams. Consequences for extrapolation of short-time tests.
    Notes: Prinzipien der Auswerte-Methodik für Kriechmeßdaten (Dehnung als Funktion der Zeit) bei technischer und bei wissenschaftlicher Zielsetzung. Ableitung und Diskussion von Gleichungen für Zeitbruch- und Dehngrenzlinien im Zeitstandschaubild. Konsequenzen für die Extrapolation von Kurzzeittests.
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    URL: http://dx.doi.org/10.1002/mawe.19710020303
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    Wärmealterung und Grenztemperatur von organischen Isolierstoffen (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 127-135 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Thermal aging and endurance of organic insulating materials. The knowledge of the thermal endurance of organic insulating materials is very important for the application in electrical engineering. The change of the values of the properties by thermal aging is, theoretically, described under the assumption being a linear connection to the rules of the kinetic theory of chemical reactions. By this premise it is possible to indicate functions for aging and thermal endurance, being plotted as straight lines in suitable coordinates. In this way the test results can be evaluated better than by conventional means.
    Notes: Die Kenntnis der Grenztemperatur organischer Isolierstoffe ist für deren Anwendung in der Elektrotechnik von großer Wichtigkeit. Die Änderung von Eigenschaftswerten auf Grund einer Wärmebehandlung wird theoretisch beschrieben unter der Annahme, daß ein linearer Zusammenhang mit den Gesetzen der Reaktionskinetik besteht. Unter den getroffenen Voraussetzungen können. Alterungs- und Lebensdauerfunktionen angegeben werden, die sich bei geeigenten Koordinaten als Geradendarstellen lassen. Meßergebnisse können auf diese Weise besser ausgewertet werden als nach herkömmlichen Verfahren.
    Additional Material: 9 Ill.
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    URL: http://dx.doi.org/10.1002/mawe.19710020304
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    Die analytische Chemie im Dienste1 Plenarvortrag auf der Festsitzung der Gesellschaft Deutscher Chemiker anläßlich der ACHEMA am 20. 6. 1970 der Werkstoffentwicklung (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 135-144 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Description / Table of Contents: Analytical Chemistry used for developing new materials. The development of new materials constantly confronts the analyst with difficult new problems. Of particular importance for this work would be all methods permitting to lay bare the phase interface and to study their structure and perturbations of this structure. The analyst has to solve these problems in close contact with the technologists specializing in this modern technique.
    Notes: Die Entwicklung neuer Werkstoffe stellt den Analytiker vor immer neue diffizile Aufgaben. Insbesondere dürften alle Verfahren, mit denen es gelingt, Phasengrenzflächen freizulegen und ihren Aufbau sowie Störungen in diesem Aufbau zu studieren, für diese Aufgaben von großer Bedeutung sein. Der Analytiker muß diese Aufgaben in engster Fühlung mit den Technologen, die sich dieser modernen Entwicklung verschrieben haben, lösen.
    Additional Material: 17 Ill.
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    Kaltgewalztes Flachzeug aus unlegierten weichen Stählen  -  Nach DIN 1623 Blatt 1 (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 113-123 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Cold-Rolled Flat Products of Plain Carbon Mild Steel According to DIN 1623 Sheet 1. Cold-rolled flat products of plain carbon mild steel and among the most important finished products made by iron and steel works and rolling mills as well as being among the most important semi-products for industrial manufacture. Metallurgical and rolling developments during the course of the last twenty years have resulted in considerable improvements in the main cold forming properties of sheet and strip. The chief demand made of manufacturers of cold-rolled flat products is for sheet and strip which has been fully annealed and rerolled for good cold formability. Because of the various stresses on materials in the different forming processes, it is difficult to make a reliable prediction from test results about the behaviour of the material during actual forming operations. The new edition of sheet 1 of DIN 1623 prescribes the conventional test methods and their results as regards ensuring cold formability. The Standard does not include the additional means of using numerical values for vertical anisotropy r, work hardening exponent n and the maximum drawing ratio (ßo)max.
    Notes: Kaltgewalztes Flachzeug aus unlegierten weichen Stählen ist eines der wichtigsten Walzwerksfertigerzeugnisse der Hütten- und Walzwerke und ebenso eines der wichtigsten Halbzeuge für die industrielle Fertigung. Die metallurgische und walztechnische Entwicklung haben vor allem im Verlauf der beiden vergangenen Jahrzehnte zu bedeutsamen Fortschritten hinsichtlich der für die Kaltumformung der Bleche und Bänder wichtigen Eigenschaften geführt. Die wichtigste Forderung der Verarbeiter kaltgewalzten Flachzeugs ist die nach bester Kaltumformbarkeit der rekristallisierend geglühten und nachgewalzten Bleche und Bänder. Dabei ist es wegen der unterschiedlichen Werkstoffbeanspruchung bei den einzelnen Umformungsprozessen schwierig, mit Hilfe von Prüfergebnissen eine zuverlässige Vorhersage des Werkstoffverhaltens bei der betrieblichen Umformung zu machen. Die Neufassung des Blattes 1 der DIN 1623 legt hinsichtlich der Gewährleistung der Kaltumformbarkeit die konventionellen Prüfverfahren und deren Ergebnisse zugrunde. Eine zusätzliche Bewertung unter Verwendung der Zahlenwerte für die senkrechte Anisotropie r, den Verfestigungsexponenten n und das Grenzziehverhältnis (ßo)max ist zur Zeit im Rahmen der Norm nicht angebracht.
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    Neues aus dem Werkstoffgebiet (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 150-154 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 6 Ill.
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    URL: http://dx.doi.org/10.1002/mawe.19710020307
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    Berichte über Tagungen (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 156-159 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 1 Tab.
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    URL: http://dx.doi.org/10.1002/mawe.19710020309
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    Veranstaltungskalender (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 224-224 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020418
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    Der Carl Hanser Verlag hat sich entschlossen, die Zeitschrift „futurum“, die früher im Verlag Anton Hain KG, Meisenheim, erschien, neu zu konzipieren, Ossip K. Flechtheim gibt sie jetzt heraus; „Die Erforschung der Zukunft ist auf eine kritische Analyse der Gegenwart angewiesen, an der sich nicht nur Soziologen, Psychologen, Philosophen beteiligen sollen, sondern die Probleme, die in dieser Zeitschrift diskutiert werden sollen, gehen uns alle an, und auch die Techniker werden ihren Beitrag hierzu liefern müssen. Das Heft 3/1970 hat als Überschrift „Konflikt- und Friedensforschung“. Es enthält Aufsätze von h. Klages, p. Weingart, F. Vilmar, T. Ebert, D. Senghaas, M. Lumsden, S. Leibfried, J. Galtung (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 223-223 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020416
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    Masthead (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971) 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020501
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  • 63
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    Zur Austenitbildung an der Korngrenze und zum Bruchverhalten unterschiedlich wärmebehandelter Eisen-Proben mit 0,01% C (Armco-Eisen) (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 232-242 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The formation of austenite on the grain boundary in armcoiron. The austenite formed at the grain boundary of armcoiron showed hardening structure after annealing and quenching. The interpretation of the formation of austenite is possible by evaluation of the hardening structure. The areas of fracture resulting from the size and the distribution of the hardening structure is discussed. It is pointed out, that the area of fracture is a function of the size as well as of the distribution of the hardening structure.
    Notes: Der sich bei (Armco-)Eisen während der Glühung im α- + γ- Mischkristallgebiet an der Korngrenze gebildete Austenit zeigte nach dem Abschrecken Härtegefüge und entsprechende Härtewerte Ein Anlassen auf 500 °C führte zu einer Einformung des Zementits. Die Deutung der Austenitbildung ist nur indirekt über Rückschlüsse aus dem Härtegefüge, das bei Raumtemperatur untersucht werden kann, möglich. Die Wärmebehandlung beeinflußt auch Größe und Verteilung der Härtegebiete. Das Verformungsverhalten unterschiedlich wärmebehandelter Proben wird anhand von Aufnahmen, die mit einem Raster-Elektronenmikroskop gemacht wurden, besprochen.
    Additional Material: 31 Ill.
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    Entwicklungstendenzen bei hochfesten schweißbaren Kessel- und Druckbehälterstählen (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 225-232 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Development Trends in High Tensile Weldable Boiler and Pressure Vessel Steels. Increase of dimensions, pressure and temperature of boilers and pressure vessels necessitate the development of high tensile steels. To improve the tensile properties of steels water quenching and tempering (Q. T.) is applied more and more beside the addition of alloying elements.Results of tests on Q. T. micro- and low alloyed pressure vessel steels have been described. In addition to tensile and brittle fracture properties the behaviour of Q. T. Steels in creep tests, fatigue tests and intercrystalline corrosion tests has been reported on.Water quenching and tempering of boiler and pressure vessel steels offers technologically and economically favourable means of development.
    Notes: Die zunehmenden Abmessungen, Drücke und Temperaturen von Dampfkesseln und Druckgefäßen führen notwendigerweise zur Entwicklung höherfester Stähle. Zur Steigerung der Festigkeitseigenschaften wird immer mehr die Wasservergütung herangezogen. Es werden Ergebnisse von Untersuchungen an wasservergüteten mikrolegierten und niedriglegierten Druckbehälterstählen beschrieben. Außer den Festigkeitseigenschaften und der Sprödbruchsicherheit wird das Verhalten wasservergüteter Stähle bei Dauerstandsbeanspruchung, Dauerfestigkeitsbeanspruchung sowie hinsichtlich interkristalliner Spannungsrißkorrosion behandelt.Abschließend ist festgestellt worden, daß die Wasservergütung von Kessel- und Druckbehälterstählen eine technisch und wirtschaftlich günstige Entwicklungsmöglichkeit bietet.
    Additional Material: 17 Ill.
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    URL: http://dx.doi.org/10.1002/mawe.19710020502
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    Zur Prüfung der Weichlötbarkeit von metallischen Halbzeugen (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 252-253 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Testing of soft-soldering properties of semi-manufactured metals. Suitable for carrying-out solderability tests of semimanufactured metals, especially of strips or sheets made of copper alloys, a simple apparatus has been developed, which permits the determination of the “critical immersion rate”, i.e. the immersion rate of a specimen with defined dimensions, at which a complete wetting with molten tin still occurs. The results obtained with this apparatus are reproducible and suitable for the assessment of the soft-soldering properties of materials to be soldered.
    Notes: Ein einfaches Gerät für die Prüfung der Lötbarkeit von Halbzeugen, insbesondere Bändern oder Blechen aus Kupferlegierungen, wird beschrieben, das die Bestimmung der “Grenztauchgeschwindigkeit”, d. h. der Tauchgeschwindigkeit einer Probe mit definierten Abmessungen, bei welcher noch eine vollständige Benetzung der metallischen Oberfläche mit Lötzinn erfolgt, ermöglicht. Die mit diesem Gerät erzielbaren Ergebnisse sind reproduzierbar und als Maß für die Verzinnbarkeit zu lötender Werkstoffe geeignet.
    Additional Material: 2 Ill.
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    URL: http://dx.doi.org/10.1002/mawe.19710020505
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    Rißfortschritt in ultrafesten Stählen und deren Schweißverbindungen bei dynamischer Beanspruchung (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 243-252 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Crack propagation in ultra-high-strength steels and their welded joints under dynamic loading. Reported are results of investigation into the propagation of cracks in the base metal and weld metal of an ultra-high-strength steel. The material used in the investigations was a Ni—Co—Mo—alloy maraging steel with a yield point of 170 kp/mm2. The steel was arc welded and TIG welded. The joints exhibited a drop of static strength in the range of 5 to 8 percent related to the base metal. Under zero-to-tension stress cycles the fatigue strength corresponded that of other high-strength steels, under tension-compression stress cycles the steel exhibited a higher fatigue strength. It was possible to show striations with the aid of scanning microscopy. Comparing the track propagation calculated in the microscopic range with the results obtained from the crack growth curves produced approximate agreement.
    Notes: Die folgenden Untersuchungen befassen sich mit dem Rißfortschritt in ultrafesten geschweißten Verbindungen. Als Versuchswerkstoff diente-ein martensitaushärtender Ni—Co—Mo—legierter Stahl mit einer Mindeststreckgrenze von 170 kp/mm2. Die verwendeten Bleche wurden lichtbogenhand- und WIG-geschweißt. Bei den Verbindungen war ein statischer Festigungsabfall von 5 bis 8% zu verzeichnen. Im Zugschwellbereich entsprach die Schwingfestigkeit der Tragfähigkeit anderer hochfester Stähle, im Zug-Druck-Wechselbereich dagegen ergab sich eine bessere dynamische Tragfähigkeit. Mit Hilfe der Rasterelektronenmikroskopie gelang der Nachweis von Bruchlinien. Ein Vergleich der im mikroskopischen Bereich berechneten Rißfortschrittsgeschwindigkeiten mit den aus den Rißwachstumskurven gewonnenen Ergebnissen führte zu einer annähernden Übereinstimmung.
    Additional Material: 15 Ill.
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    URL: http://dx.doi.org/10.1002/mawe.19710020504
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    Neues aus dem Werkstoffgebiet (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 262-263 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020508
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    Über ein neues druckloses Formgebungsverfahren für pulverförmige Werkstoffe (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 8-12 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: New Forming Process of Powder Materials. A new forming process for powder materials is described. By this process the powder is accelerated and densified in a very short time in a simple form by an electrodynamic system. The densification is accomplished in some milliseconds with accelerations till 30 000 g. In spite of this short time long cylindrical bodies can be fabricated with an uniform, high density of 70% of theoretical. For this purpose ceramic and metal powders with particles below 30 microns are specially used.
    Notes: Ein neues Formgebungsverfahren für pulverförmige Werkstoffe, bei dem die Pulver in billigen, einfachen Gefäßen zur Formgebung und Verdichtung mit Hilfe von elektrodynamischen Impulsgebern kurzzeitig sehr hoch beschleunigt werden, wird ausführlich beschrieben. Die eigentliche Pulververdichtung erfolgt innerhalb von Millisekunden bei Beschleunigungen bis zu 30 000 g. Trotz dieser kurzen Einwirkungszeit können auch lange zylindrische Körper mit gleichmäßig hoher Dichte von 70% T. D. hergestellt werden. Für diese Verfahrenstechnik eignen sich besonders keramische und metallische Pulver mit Teilchengrößen unter 30 μm.
    Additional Material: 6 Ill.
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    URL: http://dx.doi.org/10.1002/mawe.19710020103
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    Werkstoffwissenschaften: Neue Tendenzen zur Integration in Forschung und LehreIn der Technik-Beilage der Neuen Zürcher Zeitung erschien im März 1969 ein in Fachkreisen viel beachteter Aufsatz über Werkstoffwissenschaften von Herrn Professor Dr. B. Ilschner. Da dieses Thema eines der Zentralthemen unserer Zeitschrift ist, baten wir im Einvernehmen mit der Redaktion der Neuen Zürcher Zeitung Herrn Professor Dr. B. Ilschner um Veröffentlichung seiner Arbeit. Für das Heft 1 des 2. Jahrganges, das auch mit der Serie Ausbildung und Forschung auf dem Werkstoffgebiet beginnt, hat er uns ein auf den neuesten Stand gebrachtes Manuskript gegeben, wofür wir ihm danken. Recent trends in the integration of research and education (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 1-8 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020102
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    Messen des Korrosionspotentials an Schweißverbindungen im Kleinbereich (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 19-25 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The small scale measurement of corrosion potential in welded joints. The corrodibility of welded joints is reported on. Potential curves give the possibility to backing the incomplete results in this field and permit a well defined statement concerning the corrosion behaviour. Failures of interpretation due to polarisation are indicated. The pulsating method helps to prevent changes of the concentration by reactions and alteration of the pH-value.This method delivers useful informations and detects the corrosion sensibility of welded joints.
    Notes: Berichtet wird über die Korrosionsempfindlichkeit von Schweißverbindungen. Potential-Kurven ermöglichen es, die noch unvollständigen Ergebnisse auf diesem Gebiet zu vervollständigen und abzusichern und gestatten eine eindeutige Aussage bezüglich des Korrosionsverhaltens. Hingewiesen wird auf Fehler, die bei dieser Art von-Messung durch Polarisation entstehen. Mit Hilfe der Impulsmethode gelingt es, Konzentrationsänderungen durch Reaktionen und Änderungen des pH-Wertes zu verhindern. - Die Arbeitsmethode liefert in kurzer Zeit brauchbare Informationen und deckt gleichzeitig die korrosiv empfindlichen Zonen einer Schweißverbindung auf.
    Additional Material: 19 Ill.
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    URL: http://dx.doi.org/10.1002/mawe.19710020105
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    Untersuchungen über das Strangpressen kubisch-flächenzentrierter Metalle. Teil III: Metallurgische UntersuchungenTeil I in Heft 2, S. 83-89; Teil II in Heft 3 S. 127-137 (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 13-18 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Metallurgical Investigations. Hardness determination proved that with rising extrusion temperatures a constant value of hardness could not be reached. Micro-examinations showed that the fibrous structure remains even with the highest extrusion temperature and that recrystalizations start later. Electronmicroscope investigations showed the formation of a cellular structure, and the sub-grain-boundaries flattened out with rising extrusion temperatures. The cellular structure is formed by a net of complicated dislocations. The pole figures showed that after reaching a reduction of R = 40 only the 〈 111 〉 direction could be determined. By comparing the hardness values, the micro-sections, and the electronmicroscope pictures it must be concluded that restoration takes place by polygonization before recrystallization. The existing stresses during the extrusion favour restoration by polygonization because they aid the climb of edge dislocations by creating new vacancies and annihilating the dislocations.  -  By microscopic investigations it could be shown that the segregated area which is formed during solidification in continuos extrusion in homogenised by strong deformation action on the sliding interface.
    Notes: Härtemessungen zeigten, daß man keinen konstanten Wert mit zunehmender Verpressungestemperatur erreicht. Lichtoptische Untersuchungen ergaben, daß die Faserstruktur bis zu höchsten Temperaturen erhalten bleibt und daß die Rekristallisation spät einsetzt. Elektronenoptische Untersuchungen zeigten, daß die Ausbildung einer Zellenstruktur auf der Grundlage eines sehr komplizierten Versetzungsnetzes, sowie eine deutliche Verflachung der Sub-Korn-Grenzen mit steigender Temperatur eintritt. Polfigurbestimmungen erbaben, daß von einem Reduktionsverbhältnis R = 40 und höher nur noch die 〈 111 〉 Ausrichtung besteht. Aus dem Vergleich der Härtewerte, der lichtoptischen und elektronenoptischen Untersuchungen kann geschlossen werden, daß die Restauration des verpreßten Aluminiums durch Polygonisation schon in der Erholungsperiode, vor der Rekristallisation, stattfindet und daß die bestehenden Spannungen den Vorgang beschleunigen, da das Klettern der Stufenversetzungen dadurch begünstigt wird, denn diese Spannungen schaffen neue Leerstellen und löschen Versetzungen aus.  -  Durch Schliffbilder konnte gezeigt werden, daß eine durch Steigerung beim kontinuierlichen Verpressen entstehende angereicherte Segregatschicht durch die kräftige Grenzschichtengleitung homogenisiert wird.
    Additional Material: 19 Ill.
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    Neues aus dem Werkstoffgebiet (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 34-36 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 1 Ill.
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    URL: http://dx.doi.org/10.1002/mawe.19710020108
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    Der Lasermikrospektralanalysator als Anregungsgerät für die Emissionsspektralanalyse (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 25-27 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The Laser-Microprobe as an Excitation Device for Electrochemical Analysis. The laser-microprobe, which has been commercially available for some years, is specially suited for the purpose-oriented microanalysis. The equipment set-up permits the laser-microprobe or the spark unit to be used as excitation device with out change. The low initial cost compared to other equipments of similar efficiency will in the future ensure a wider use of this multi-purpose equipment in microanalysis, despite some inherent imperfections.
    Notes: Der seit einigen Jahren auf dem Markt erhältliche Lasermikrospektralanalysator (LMSA) eignet sich besonders zur gezielten Mikroanalyse. Er läßt sich so aufbauen, daß er oder das Funken-Bogen-Stativ wahlweise ohne Umrüstung zur Anregung verwendet werden kann.Die im Vergleich zu verfahren ähnlicher Wirksamkeit niederen Anschaffungskosten lassen erwarten, daß dieses vielseitig verwendbare Gerät bei der Durchführung von Mikroanalysen trotz einiger Unvollkommenheiten weiterhin Beachtung finden wird.
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    Kurze Nachrichten (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 46-56 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020117
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    Technologische Eigenschaften von Titan-SprengplattierungenVorgetragen auf der ACHEMA 1970, 16. Ausstellungs-Tagung für chemisches Apparatewesen Frankfurt/Main vom 17. bis 24. Juni 1970. (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 169-174 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Mechanical Properties of Titanium Explosion Claddings. Steel vessels explosion-clad with titanium show certain advantages over vessels lined with titanium or entirely consisting of titanium, for purposes involving temperatures above 200° C, high pressures and external heating. This report deals with the sheer resistance and bend ductility achieved by cladding of boiler plates H I and H II with either commercial pure titanium of low tensile strength or with palladium-alloyed titanium. The effect of shock wave propagation, micro-structure and heat treatment are discussed. Finally the report gives information about the acceptance conditions and processing problems.
    Notes: Sprengplattierungen der Paarung Titan - Stahl ergeben im Behälterbau im Vergleich zu Auskleidungen mit Titan oder Titanbehältern Vorteile bei Temperaturen oberhalb 200° C, hohen Drucken sowie bei Außenbeheizung. Für Paarungen mit Titan technischer Reinheit geringer Festigkeit sowie mit geringem Palladiumzusatz als Auflagewerkstoffe und den Kesselblechen H I und H II als Grundwerkstoffe wird die erzielte Abscherfestigkeit und die Biegefähigkeit beschrieben. Der Einfluß der Schokwellenausbildung, der Gefügebeeinflussung und von Wärmebehandlungen werden besprochen. Schließlich werden die Abnahmebedingungen und Verarbeitungsfragen erörtert.
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    Stahl-Eisen-Liste, 3. Auflage, Hrg.: Verein Deutscher Eisenhüttenleute, Düsseldorf, 1969 (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 223-224 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020417
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    Das O-Heft der neuen VDI-Zeitschrift „UMWELT Forschung-Technik-Schutz“ liegt vor. Die Zeitschrift will alle Probleme auf diesem Gebiete aus allen Richtungen der Technik in einer Zeitschrift zusammenfassen. Die „UMWELT“ soll die Verantwortung schärfen; sie soll zu einer mutigen und positiven Haltung in der Planung, in der Forschung, in der Technik und im umweltschutz führen, führt Dr. Ing. Reinhard Menger, der Direktor des Vereins Deutscher Ingenieure aus (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 223-223 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020415
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    Kurze Nachrichten (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 324-333 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 3 Ill.
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    URL: http://dx.doi.org/10.1002/mawe.19710020611
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    Arno Schmidt, Schutz und Verwertung von Erfindungen und gewerblichen Rechten. (Ein Ratgeber für Naturwissenschaftler, Ingenieure und Manager), Verlag Chemie GmbH, Weinheim, 1971, 65 S. broschiert, DM 14,80 (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 335-335 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020619
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    Erich Zipse: Erfindungs- und Patentwesen auf den Gebieten moderner Technologie. Verlag Chemie GmbH, Weinheim, 1971, VI, 182 Seiten mit zwei Abbildungen; broschiert, DM 34, -  (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 335-336 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020620
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    Veranstaltungskalender (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 336-336 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020621
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    Masthead (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971) 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020701
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    Aussichten für die Entwicklung technisch nutzbarer faserverstärkter HochtemperaturwerkstoffeVorgetragen auf der Tagung Verbundwerkstoffe der DGM am 23. 10. 1970 in Konstanz. (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 337-345 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Prospects for the Development of Useful High Temperature Resistant Fibre-Strengthened Materials. New and better materials are still in demand in the field of high temperature technology. High creep rupture strengths and resistance to thermal shock are required when these materials are to be used at temperatures above 1000°C in the presence of combustion gases and flowing and/or static air with high oxygen content. Production methods are reviewed and a critical discussion is given on present research results as well as possible matrix combinations for fibre materials. The chemical compatibility between the composite components is thoroughly discussed. It is stressed that the problems of chemical compatibility and oxidation resistance need special consideration in the development stages of these materials.
    Notes: In verschiedenen Bereichen der Hochtemperaturtechnik werden neuartige Materialien benötigt, die sowohl hohe Zeitstandfestigkeiten und günstige Thermoschockeigenschaften aufweisen als auch in sauerstoffhaltigen Verbrennungsgasen oder ruhender und strömender Luft oberhalb 1000°C eingesetzt werden können. Unter Berücksichtigung der von der Technik gestellten Anforderungen werden die Aussichten abgeschätzt und überprüft, die auf diesem Gebiet für die Entwicklung leistungsfähiger Faserverbundwerkstoffe aus vorhandenen und zu entwickelnden Materialkomponenten bestehen. Es wird ein Überblick über vorliegende Verfahren zur Herstellung derartiger Verbundwerkstoffe gegeben und bekanntgewordene Versuchsergebnisse an potentiellen Faser Matrix-Kombinationen kritisch diskutiert. In diesem Zusammenhang werden Fragen der chemischen Verträglichkeit der Verbundwerkstoff-Komponenten eingehender besprochen. Diesem Problem und dem der Oxydationsbeständigkeit der Materialkombinationen muß bei der Entwicklung neuartiger Hochtemperaturwerkstoffe besondere Aufmerksamkeit geschenkt werden.
    Additional Material: 9 Ill.
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    URL: http://dx.doi.org/10.1002/mawe.19710020702
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    Der Einfluß von Temperatur und Zeit beim Schweißen von Baustählen mit Strahlen hoher Intensität (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 356-361 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Temperature and Time Dependent Fusion Welding with Beams of High Intensity By a special set-up very high local and time-dependent temperature gradients were measured in the weld zone of beam affected areas. Under certain weld conditions a leading preheat wave does not exist. As to the resulting microstructure in the beam, the characteristic steep temperature curves do not allow any prediction. Zones of enlarged hardness were reduced by different heat-treatments.
    Notes: Mit Hilfe einer neuartigen Meßmethode ließen sich hohe örtliche und zeitliche Temperaturgradienten mit großer Genauigkeit bestimmen. Die Untersuchungen ergaben u. a., daß bei bestimmten Schweißbedingungen ein Wärmevorlauf nicht stattfindet. Auf Grund der sehr steilen Temperaturverläufe lassen sich Vorhersagen zur. Gefügeausbildung nicht treffen. Härtespitzen im Schweißnahtbereich sind durch verschiedenartige Wärmebehandlungen abzubauen.
    Additional Material: 11 Ill.
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    URL: http://dx.doi.org/10.1002/mawe.19710020704
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    Sintervorgänge in Karbid-Kobalt-Legierungen mit 0,2 bis 15% Kobalt (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 345-355 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Sintering processes in carbide-cobalt-alloys containing 0,2 to 15% Co. The sintering processes in alloys consisting of 0,2, 0,5, 3, 6 and 15% cobalt, the remainder being either WC, TiC, WC/TiC or WC/TiC/TaC, were observed after annealing at 400°C to 1500°C by measuring the bending strength at rupture, the magnetic saturation, the specific electrical resistance and the coercive force at room temperature. As early as the grinding stage the WC-Co-compounds can be clearly distinguished from all other blendings. Thin, not necessarily coherent layers of Co form on the tungsten carbides, a fact which is indicated by the higher coercive force and bending strength at rupture of the WC-Co-green compacts.The actual sintering processes can be divided in to four temperature ranges:(I)T ≤ 400°C(II)400°C 〈 T ≤ 800°C(III)800°C 〈 T 〈 liquid Phase(IV)T ≥ liquid PhaseThe sintering process within these ranges are disscussed in detail and should greatly contribute to an understanding of the structural composition of carbide metals.
    Notes: Die Sintervorgänge in Legierungen mit 0,2, 0,5, 3, 6 und 15% Kobalt, Rest jeweils WC, TiC, WC/TiC oder WC/TiC/TaC wurden nach Glühungen bei 400°C bis 1500°C durch Messung von Biegebruchfestigkeit, Sättigungsmagnetisierung, spezifischem elektrischem Widerstand und Koerzitivkraft verfolgt. Die Ermittlung der Meßwerte erfolgte bei Raumtemperatur. Bereits beim Mahlen unterscheiden sich die WC-Co-Mischungen von allen übrigen Ansätzen. Auf den Wolframkarbiden bilden sich dünne, nicht unbedingt zusammenhängende Co-Schichten aus, worauf die höheren Koerzitivkraft- und Biegebruchfestigkeitswerte der WC-Co-Grünlinge hinweisen.Die Sintervorgänge selbst lassen sich in vier Temperaturbereiche einteilen:(I)T ≤ 400°C(II)400°C 〈 T ≤ 800°C(III)800°C 〈 T 〈 flüssige Phase(IV)T ≥ flüssige PhaseDie in diesen Intervallen ablaufenden Sinterprozesse werden ausführlich besprochen und dürften wesentlich zum Verständnis des Gefügeaufbaues der Hartmetalle beitragen.
    Additional Material: 14 Ill.
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    URL: http://dx.doi.org/10.1002/mawe.19710020703
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    Schneiden und Schweißen mit dem CO2-Laser (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 361-366 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Cutting and Welding Using a CO2-Laser. Among the various types of lasers the CO2 laser is particulary suitable for materials working. It has a very high efficienty (15-20 %) and a high output power (up to several kW). When the laser light is focused by means of a lens or a mirror, a power density of more than 109 W/cm2 is attained in continuous operation. The laser need not be applied in vacuum.The CO2 laser is a suitable cutting tool for numerous materials, e. g. for metals such as titanium or steel, for combustible materials such as paper, textiles, wood, and plastics, and also for hard and brittle materials such as aluminium oxide and silicon carbide. If the metals are cut in an oxidizing atmosphere, the cutting speed may be increased. The cutting width however is determined by the size of the laser spot.In addition, experiments are reported in which the CO2 laser was used for welding steel, titanium, plastics, quartz, and glass. The advantages of the laser for this application are discussed.Another important field of application is the growth of single crystals.In several fields the laser is in competition with the electron gun. Therefore, the laser technique is compared with the electron beam technique.
    Notes: Unter allen Lasertypen ist der CO2-Laser für die kontinuierliche Materialbearbeitung besonders geeignet. Er hat einen sehr hohen Wirkungsgrad (15-20 %) und eine große Ausgangsleistung (bis zu einigen kW). Bei Bündelung mittels Linse oder Spiegel erreicht man im Dauerbetrieb eine Leistungsdichte von mehr als 109 W/cm2. Die Anwendung des Lasers braucht nicht im Vakuum zu erfolgen.Zahlreiche Werkstoffe lassen sich vorteilhaft mit dem CO2-Laser schneiden, z. B. Metalle wie Titan oder Stahl, brennbare Materialien wie Papier, Textilien, Holz und Kunststoff sowie auch harte und spröde Materialien wie Aluminiumoxid und Siliciumcarbid. Wenn man die Metalle in oxydierender Atmosphäre schneidet, dann erhöht sich die Schnittgeschwindigkeit. Die Schnittbreite ist in jedem Fall durch die Größe des Laserflecks bestimmt.Ferner wird über Experimente berichtet, bei denen der CO2-Laser zum Schweißen von Stahl, Titan, Kunststoff, Quarz und Glas eingesetzt wurde. Die Vorteile des Lasers für diese Anwendung werden diskutiert.Ein weiteres wichtiges Anwendungsgebiet ist das Herstellen von Einkristallen.In einigen Bereichen konkurriert der Laser mit der Elektronenstrahlkanone. Die Elektronenstrahltechnik und die Lasertechnik werden deshalb verglichen.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020705
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    Ausbildung und Forschung (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 373-374 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020707
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    Neues aus dem Werkstoffgebiet (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 374-377 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020708
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    Normung auf dem Werkstoffgebiet (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 377-379 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020709
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    Zweischichten-SinterwerkstoffeVortrag auf dem Europäischen Symposium für Pulvermetallurgie, 7.-10.5. 1968 in Stuttgart (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 367-373 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Double-layer sintered metals. Double-layer sintered metals are materials, semi-products and formed parts consisting of two sintered layers of metal powders of different composition. Although the main reasons for their introduction lie on the materials and manufacturing sides, economics also play an important role in the application of the materials. A description is given of the main variables affecting the manufacture and properties of the new metals. Descriptions are also given of much special double layer sintered materials as FeNi20/FeNi36, Cu/Fe, Cu/CuNi30, Cu/CuSn9, AgCu8/CuNi30, AgPb10/Ag, AgPb10/Fe, AgNi10/Ni, AgNi10/Cu, AgNi10/CuNi30, AgCdO10/Ag, AgCdO10/Cu, AgCdO10/Ni; AgCdO10Cu8/Cu, AgCdO10Cu8/CuNi30, AgC4/AgNi10, WCu30Ni/Cu, WNi1/Ni and W AG30/Ag. The materials are used as bimetal stripl, electrical conductors and contacts, and as semi-conducteur components.
    Notes: Unter Zweischichten-Sinterwerkstoffen sind Werkstoffe, Halbzeuge und Formteile aus zwei übereinanderliegenden Schichten verschiedener Zusammensetzung zu verstehen, die aus Metallpulvern nach den Verfahrensschritten der Sintertechnik hergestellt sind. Es sind vor allem werkstoffliche und fertigungstechnische, aber auch wirtschaftliche Gründe, die zum Einsatz dieser Werkstoffe führen. Die grundlegenden Einflußgrößen auf Herstellung und Eigenschaften werden aufgezeigt. An speziellen Zweischichten-Sinterwerkstoffen werden FeNi20/FeNi36, Cu/Fe, Cu/CuNi30, Cu/CuSn9, AgCu8/CuNi30, AgPb10/Ag, AgPb10/Fe, AgNi10/Ni, Agni10/Cu, AgNi10/CuNi30, AgCdO10/Ag, AgCdO10/Cu, Ag CdO10/Ni, AgCdO10Cu8/Cu, AgCdO10Cu8/CuNi30, AgC4/AgNi10, WCu30Ni/Cu, WNi1/Ni und W Ag30/Ag beschrieben. Sie finden als Thermobimetalle, Werkstoffe der Elektrotechnik, wie Leiterwerkstoffe, elektrische Kontaktwerkstoffe und Halbleiterbauelemente Anwendung.
    Additional Material: 14 Ill.
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    Berichte über Tagungen (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 379-380 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020710
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    Kurze Nachrichten (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 381-391 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 2 Ill.
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    URL: http://dx.doi.org/10.1002/mawe.19710020711
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    Veranstaltungskalender (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 391-392 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020712
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    Ausbildung und Forschung (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 102-105 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020208
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    Berichte über Tagungen (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 105-106 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020209
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    Kurze Nachrichten (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 106-111 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020210
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    Klaus Sczimarowsky, Gefüfung metallischer Werkstoffe. Verlag für Studienuterlagen, 4235 Kapellen, 87 Seiten, DIN A 4, geheftet (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 112-112 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020211
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    Veranstaltungskalender (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 112-112 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020213
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    Masthead (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971) 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020301
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    Normung auf dem Werkstoffgebiet (1971)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 2 (1971), S. 154-155 
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    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19710020308
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