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  • Articles  (8)
  • 78.65  (5)
  • adsorption  (3)
  • Springer  (8)
  • American Association for the Advancement of Science (AAAS)
  • 2005-2009
  • 1985-1989  (8)
  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (8)
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  • Articles  (8)
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Keywords
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  • Springer  (8)
  • American Association for the Advancement of Science (AAAS)
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  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (8)
  • Physics  (6)
  • Chemistry and Pharmacology  (3)
  • 1
    Electronic Resource
    Electronic Resource
    An adsorption effect on the gel strength of dilute gelatin-stabilized oil-in-water emulsions (1985)
    Springer
    Colloid & polymer science 263 (1985), S. 933-934 
    Details
    ISSN: 1435-1536
    Keywords: Gelatin ; emulsion ; gel ; shear modulus ; adsorption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The incorporation of emulsion oil droplets into a gelatin gel leads to an initial increase in shear modulus at 25 °C for a gelatin concentration of 8 wt % but an initialdecrease for a concentration of 5 wt %. The latter result is consistent with a net lowering of the gelatin concentration available for gelation in the aqueous phase due to adsorption at the oil-water interface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01469632
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  • 2
    Electronic Resource
    Electronic Resource
    Laser-induced synthesis of compound semiconducting films (1986)
    Springer
    Applied physics 40 (1986), S. 133-143 
    Details
    ISSN: 1432-0630
    Keywords: 86.84 ; 78.65 ; 78.90
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Compound semiconducting films are synthesized by laser irradiation of sandwich films of the constituants, under various conditions (time of irradiation, laser power, temperature, etc.). Experimental data give evidence of the roles of various parameters. After a presentation of the experimental results, the fundamental physico-chemical mechanisms of laser material interactions are analyzed. Particular emphasis is given to effects that need to be treated by using very-far-from-equilibrium concepts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617394
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  • 3
    Electronic Resource
    Electronic Resource
    Thermodesorption of ultrathin organic films studied by reflection (1986)
    Springer
    Applied physics 39 (1986), S. 173-181 
    Details
    ISSN: 1432-0630
    Keywords: 44.50 ; 78.65 ; 81.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Optical reflection measurements are described as a new and simple technique to measure thicknesses and thickness changes of ultrathin organic overlayers on inorganic support. The prime advantages are high sensitivity in thickness measurements (0.1–1 Å), applicability under varying environmental conditions, nondestructiveness, applicability on different supports and high time resolution. These features are assessed theoretically and experimentally studying Langmuir-Blodgett films on SiO2 and Au supports. These films, in this work prepared with the model compound arachidic acid, provide the salient feature of well-defined thicknesses in integer multiples of 26.7 Å. Application of the technique in thermodesorption experiments reveals distinguished binding states with binding energies (73–110 kJ/mol) depending on the counterion (Mg2+ or Cd2+) used in preparing the films and ratios of different states depending on thickness. The binding energy for the main component of multilayers (73 and 81 kJ/mol) with thickness larger than 100 Å is comparable to the heat of evaporation of bulk fatty acids. In addition an analytic expression between layer thicknesses and reflection is derived from the Fresnel equation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00620732
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  • 4
    Electronic Resource
    Electronic Resource
    Optical absorptivity of ion-beam irradiated silicon (1988)
    Springer
    Applied physics 45 (1988), S. 69-72 
    Details
    ISSN: 1432-0630
    Keywords: 78.65 ; 61.80J
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Single-crystal layers of silicon on sapphire have been irradiated with Ne and Kr ions at room temperature. The concomitant changes in optical absorption have been measured as a function of photon energy. The absorptivity of the amorphized silicon is about one order of magnitude higher as compared to the crystalline state in the photon energy interval of 1.5–3 eV. This is sufficient for generating optical patterns of high contrast by irradiation of selected parts of the wafer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00618765
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  • 5
    Electronic Resource
    Electronic Resource
    Optical recording using hydrogen phthalocyanine thin films (1985)
    Springer
    Applied physics 36 (1985), S. 71-79 
    Details
    ISSN: 1432-0630
    Keywords: 42.30 ; 64.70 ; 78.65
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Vacuum sublimed thin films of the blue dye hydrogen phthalocyanine (H2Pc) were incorporated into various optical recording structures. The dye was shown to be thermally, hydrolytically, and oxidatively stable. In all cases, the writing mechanisms are dependent on the sublimation of H2Pc. Several recording structures which take advantage of the sublimation property of H2Pc are demonstrated, including pit forming and bubble forming media. These H2Pc-based optical recording structures show very high optical contrast and low writing threshold energies. In addition, very thin films (50–75Å) of H2Pc were incorporated into a tellurium-based medium, which significantly enhanced the writing contrast observed in that medium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00620612
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  • 6
    Electronic Resource
    Electronic Resource
    Hydrogenated amorphous silicon films obtained by a low pressure dc glow discharge (1988)
    Springer
    Applied physics 46 (1988), S. 207-213 
    Details
    ISSN: 1432-0630
    Keywords: 61.40 ; 72.20 ; 78.65
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Films of a-Si: H have been deposited by means of a dc hot cathode discharge of SiH4 with electrostatic confinement at a pressure as low as 0.4 Pa. The plasma used is quite quiescent as has been observed by means of reproducible Langmuir probe measurements. Substrates have been placed at different locations in between the electrodes, some of them facing the anode and the others facing the cathode. Films deposited on substrates facing the cathode present a granular, non-columnar, structure, an IR spectrum with only SiH absorption peaks, and a very low photoresponse. Films deposited on substrates facing the anode have a similar IR spectrum but are homogeneous, have lower hydrogen content, and present a high photoresponse. The optical absorption coefficientα shows in all samples theαnE=C(E−E0) x behaviour, but with exponentx=3 and notx=2 as is usually considered in a-Si∶H.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00939265
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  • 7
    Electronic Resource
    Electronic Resource
    Characterization of the interaction between gelatin and a spread monolayer of octadecanoic acid (1985)
    Springer
    Colloid & polymer science 263 (1985), S. 778-781 
    Details
    ISSN: 1435-1536
    Keywords: Gelatin ; ionic surfactants ; adsorption ; surface rheology ; octadecanoic acid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Surface rheological measurements of octandecanoic acid monolayers spread on gelatin solutions were performed. The interaction of the spread monolayer with the gelatin involves a strong rise of the solidity of the surface structure with distinct viscoelastic properties and is comparable with the experimental findings looking into the interaction between gelatin and an ionic surfactant. The results found by the addition of sodium-dodecylsulfate to the gelatin solution are discussed, assuming the formation of a multilayer consisting of octadecanoic acid molecules interacting to a negligible degree with the gelatin-surfactant complexes displaced from the surface. The surface rheological parameters are influenced by both layers in opposition to the dynamic behaviour at compression and dilation described in the first part of this paper. An analogous effect is found if the cationic hexadecyltrimethylammoniurn-bromide is added to the gelatin solution. The influence of CTAB is interpreted as the consequence of a steric hindrance, caused by the concentration of groups with opposite charges on the small polar ranges of the gelatin molecules. As a particular interaction of octadecanoic acid with the complexes is possible, a mixed adsorption layer is formed and the high solidity of the surface layer is prevented by the presence of molecules not interacting with the complexes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01422862
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  • 8
    Electronic Resource
    Electronic Resource
    Polyacrylamide Na-kaolinite interactions: Effect of electrolyte concentration on polymer adsorption (1987)
    Springer
    Colloid & polymer science 265 (1987), S. 889-896 
    Details
    ISSN: 1435-1536
    Keywords: Polyacrylamide ; kaolinite ; clay-polymercomplex ; adsorption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The variation in polyacrylamide adsorption on Na-kaolinite as a function of the electrolyte concentration of the clay suspension, was determined under three pH conditions, where the clays display varying charge characteristics. Interpretation of the results is based on two arguments: non-charged polyacrylamide adsorption is restricted to the edge faces of the colloidal platelets and hydrogen bonding between the amide groups of the polymer and the “isolated” hydroxyl sites of these faces is the mode of surface attachment. At constant pH, when Na-kaolinite bears charged surface groups, the polymer adsorption, which is related to the density of the anchoring sites, parallels the state of ionization of the edge surface. The mechanism by which the salt modifies the adsorption properties of the kaolinite in neutral medium is not established with certainty. Nevertheless, no polymer-clay association occurs if the surface is entirely uncharged. This result is in line with the fact that while hydroxyl groups are engaged in internal hydrogen bonds, they cannot hydrogen-bond to the polyacrylamide. Variations in the clay-polymer affinity are attributed to a modification of the interfacial structure of the adsorbed polymer, associated with changes in the surface density of the anchoring groups.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01421817
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