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  • 1
    Electronic Resource
    Electronic Resource
    Mechanical characterization of Ormosil films on plastics: Young's modulus determination by three points bending (1994)
    Springer
    Journal of sol gel science and technology 2 (1994), S. 171-173 
    Details
    ISSN: 1573-4846
    Keywords: aerogels ; densification ; PDA: Partially densified aerogels ; impregnation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A protective layer has been deposited to improve the scratching properties of polycarbonate organic glasses. The starting solution consists of a mixture of organosilicon compounds, silicon alkoxides or silica colloidal solutions. The deposition is carried out using the dip coating technique. The thickness is about 2–5 µm for the film and 1 mm for the substrate. Young's moduli of the films are obtained by a new three points bending apparatus. Young's modulus of coating depends both on silica content and on the nature of the silica used as a filler.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00486235
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The sintering of silica aerogels studied by thermoporometry (1994)
    Springer
    Journal of sol gel science and technology 2 (1994), S. 277-281 
    Details
    ISSN: 1573-4846
    Keywords: thermoporometry ; densification of aerogels ; PDA: Partially densified aerogels ; impregnation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The evolution of the texture of silica aerogels during sintering is studied by thermoporometry for both neutral and base catalysed materials. During the densification the macroporous volume drops and the analysis of the mesopore size distribution evolution shows that the collapse of the smallest mesopores is responsible for the macropore volume transformation. However, corrections of the measured volumes are necessary to characterize the most compliant materials.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00486256
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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