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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

REFERENCES

Woignier, T., Phalippou, J., Sempere, R., Pelous, J. J. Phys. France 49, 289, (1988).CrossRefGoogle Scholar
2- Courtens, E., Pelous, J., Phalippou, J., Vacher, R, Woignier, T. Phys. Rev. Letters 53, 128, (1987).CrossRefGoogle Scholar
3- Keefer, K.D., Schaefer, D.W., Phys. Rev. Lett, 56, 2376, (1986)Google Scholar
4- Vacher, R., Woignier, T., Pelous, J., Courtens, E., Phys. Rev. B. 37, In Press. (1988)CrossRefGoogle Scholar
5- For a description of the instrument, see Equipements expérimentaux, LLB, CEN Saclay, France, 131, (1987).Google Scholar
6- Stauffer, D., J. Chem. Soc. Faraday Trans, 72, 1354, (1972).CrossRefGoogle Scholar
7- Alexander, S., J. Phys. France 45, 2939, (1984).CrossRefGoogle Scholar
8- Feng, S., Sen, P.N., Phys. Rev. Lett, 5, 216, (1984)CrossRefGoogle Scholar
9- Kantor, Y., Webman, I., Phys. Rev. Lett, 52, 189, (1984)Google Scholar
10- Gauthier-Manuel, B., Guyon, E., J. Phys. Lett. France, 41, 503, (1980)CrossRefGoogle Scholar
11- Tokita, N., Niki, R., Hikichi, K., J. Chem. Phys, 83, 2583, (1985)CrossRefGoogle Scholar
12- Adam, M., Delsanti, M., Durand, D., Hild, G., Munch, J.P., Pure Appl. Chem, 53, 1489, (1981)Google Scholar
13- Grünauer, M., Kadur, A., Fricke, J., Aerogels (Springer-Verlag) Proceeding in Physics, 6, 167 (1986)Google Scholar
14- Scherer, G.W., J. Non Cryst. Solids (to appear)Google Scholar
15- Prassas, M., Phalippou, J., Zarzycki, J., Glastechn. Ber., 56K, 542, (1983).Google Scholar