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  • 1
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    Spectral Analysis and Its Applications (1968)
    Holden-Day
    In:  San Francisco, 523 pp., Holden-Day, vol. 46, no. XVI:, pp. 1-14, (ISBN: 0-387-30752-4)
    Details
    Publication Date: 1968
    Keywords: Textbook of physics ; Textbook of geophysics ; Spectrum ; Spectral analysis ; Data analysis / ~ processing
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
    Electronic Resource
    Electronic Resource
    Shear Compliance of Hot-worked Pyrolytic Graphite (1966)
    [s.l.] : Nature Publishing Group
    Nature 212 (1966), S. 1567-1567 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The iS44 compliance of such a material, that is, the compliance governing the shear of the basal plane, has been measured before and after hot-working. The only published measurement of 44 until now is that of Baker and Kelly1, who found values of 1 1 x 10~9 cm2/dyne, using crystals of natural ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2121567a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Structure of Glassy Carbon (1971)
    [s.l.] : Nature Publishing Group
    Nature 231 (1971), S. 175-176 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The lack of information about the starting materials and the carbonization process given by manufacturers precludes the elucidation of the structure of the material; it is necessary to study carbonization mechanisms in well-defined starting materials. We have previously shown that glassy carbon ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/231175a0
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  • 4
    Electronic Resource
    Electronic Resource
    The induction of preferred orientation in a liquid crystal co-polyester by extrusion and drawing (1987)
    Springer
    Journal of materials science 22 (1987), S. 3784-3792 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract It is shown that liquid crystal polyester can be extruded and drawn from the melt into fine fibres which possess stiffnesses up to 68 GPa. Thicker fibres with smaller draw ratios have correspondingly lower stiffnesses, which are correlated with molecular alignments characterized by flat plate X-ray diffraction. Fibres with a range of diameters were heat-treated over a range of temperatures to determine the effect of annealing on preferred orientation and stiffness. Heat-treatment of as-spun fibres produced maxima in axial stiffness at 170° C, corresponding to an increase in preferred orientation, and 270° C, corresponding to the development of quasi-crystalline order which is analysed. Scanning electron microscopy showed the existence of needle-like domains of approximately circular cross section up to 0.8 μm in diameter. These were aligned in the direction of drawing in contrast to being haphazardly arranged in a hot rolled specimen displaying no preferred orientation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01161495
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  • 5
    Electronic Resource
    Electronic Resource
    Normal thrust in dynamic torsion for rubber-like materials (1958)
    Springer
    Rheologica acta 1 (1958), S. 110-114 
    Details
    ISSN: 1435-1528
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01968848
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  • 6
    Electronic Resource
    Electronic Resource
    Normal thrust in dynamic torsion for rubber-like materials (1961)
    Springer
    Rheologica acta 1 (1961), S. 602-602 
    Details
    ISSN: 1435-1528
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989134
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  • 7
    Electronic Resource
    Electronic Resource
    Hot-working and strengthening in metal carbide-graphite composites (1986)
    Springer
    Journal of materials science 21 (1986), S. 2941-2958 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A study of the hot-pressing of graphite-metal powder mixes up to 2700° C has been effected, concentrating on metals such as titanium, vanadium, niobium, tantalum and zirconium which form stable refractory carbides. In particular, it is shown that titanium/vanadium and graphite/electrographite powder compacts can be deformed plastically and even die-moulded rapidly above 2000° C in a one-stage process to form strong, shock-resistant composite artefacts consisting of a graphite matrix hardened by finely divided metal carbide. The compressive strength is increased by a factor of 10 over a typical electrographite. Densification and strengthening are induced at much lower temperatures than those required for pure carbons and graphite.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00551515
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  • 8
    Electronic Resource
    Electronic Resource
    Stacking-faults in tellurium-doped gallium arsenide (1968)
    Springer
    Journal of materials science 3 (1968), S. 584-589 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Samples of bulk-grown gallium arsenide single crystals, taken from both static freeze, and Czochralski ingots doped to a high level with tellurium, have been examined using transmission electron microscopy. Observation of single and multiple stacking-fault layers which have fault vectors of the kindR=a/3〈111〉 is reported. It is shown by diffraction contrast experiments that the stacking-fault defects are extrinsic. They are thought to be rafts of tellurium substituting for arsenic in {111} planes. The prevalence of the observed layer defects correlates well with the increase in carrier concentration in certain regions of the crystals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00757903
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  • 9
    Electronic Resource
    Electronic Resource
    The high temperature interaction between molybdenum and graphite (1975)
    Springer
    Journal of materials science 10 (1975), S. 1976-1990 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract This paper describes a series of experiments elucidating the interaction of molybdenum and graphite at temperatures between 2000 and 3000° C. The kinetics of the reaction were studied by a layer growth technique, perpendicular and parallel to the plane of deposition of a layered pyrocarbon. The variation of contact angle with temperature was measured optically. The behaviour of Mo wire embedded in natural graphite powder was studied. The electron microprobe was used to determine diffusion of Mo in C and C in Mo. Electron scanning was shown to be a powerful tool for following the movement of Mo particles on graphite surfaces. A model and related mechanism are proposed to explain these results. Additional work is reported to compare the above behaviour with the reaction of Mo with glassy carbon and other metals with pyrocarbon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00754489
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  • 10
    Electronic Resource
    Electronic Resource
    A new glassy carbon fibre (1970)
    Springer
    Journal of materials science 5 (1970), S. 262-267 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract It is shown that phenol-hexamine polymers may be extruded from the melt to produce fibres which may be carbonised to form fine high-strength glassy carbon fibres with a tensile strength of up to 2 GNm−2 (300 000 Ib in−2) after 900° C heat-treatment. The fibres have a specific modulus of ∼5 Mm compared with ∼14 Mm for carbonised polyacrylonitrile fibres and ∼3 Mm for silica glass fibres. Both strength and modulus increase rapidly with decrease in diameter. The fibres are subjected to no special surface treatment after extrusion but electron microscopy indicates the presence of a thin textured sheath surrounding a true glassy carbon core in the final fibre. The fibres have the advantages of glassy carbon (inertness to chemical attack, resistance to abrasion) and give promise of a new range of cheap high-strength carbon fibres derived from coal tar fractions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00551003
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