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Parameters Affecting Elastic Properties of Silica Aerogels

Published online by Cambridge University Press:  25 February 2011

T. Woignier ,
J. Phalippou  and
R. Vacher
T. Woignier
Affiliation:
Laboratoire de Science des Matériaux Vitreux, Université de Montpellier II, 34060 Montpellier Cedex, FRANCE.
J. Phalippou
Affiliation:
Laboratoire de Science des Matériaux Vitreux, Université de Montpellier II, 34060 Montpellier Cedex, FRANCE.
R. Vacher
Affiliation:
Laboratoire de Science des Matériaux Vitreux, Université de Montpellier II, 34060 Montpellier Cedex, FRANCE.
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Abstract

The Young's modulus of silica aerogels is measured using the three points flexural technique. Various parameters have been investigated such as the catalyting conditions used to elaborate the initial alcogel and the heat treatment performed to density the material. In a given sample porosity the elastic behaviour of aerogels depends on the conditions of gel preparation. This different elastic behaviour is related to the different spatial arrangement of the particles pointed out by fractal features.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 121: Symposium H – Better Ceramics Through Chemistry III , 1988 , 697
Copyright
Copyright © Materials Research Society 1988

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References

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