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Microstructural Dependence Of Aerogel Mechanical Properties

Published online by Cambridge University Press:  28 February 2011

J.D. Lemay ,
T.M. Tillotson ,
L.W. Hrubesh  and
R.W. Pekala
J.D. Lemay
Affiliation:
Chemistry And Materials Science Department, Lawrence Livermore National Laboratory, Livermore, CA 94550
T.M. Tillotson
Affiliation:
Chemistry And Materials Science Department, Lawrence Livermore National Laboratory, Livermore, CA 94550
L.W. Hrubesh
Affiliation:
Chemistry And Materials Science Department, Lawrence Livermore National Laboratory, Livermore, CA 94550
R.W. Pekala
Affiliation:
Chemistry And Materials Science Department, Lawrence Livermore National Laboratory, Livermore, CA 94550
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Abstract

Aerogels are highly porous solids derived from the hypercritical drying of covalently crosslinked gels. SEM, TEM and scattering studies reveal that these materials have an open-cell morphology with a solid matrix composed of interconnected colloidal-like particles (30–200 A) Processing variables and synthetic conditions largely determine the microstructure and morphology. In this study, the structure-mechanical property relationships of silica, resorcinolformaldehyde, and carbon aerogels are examined.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 180: Symposium A – Better Ceramics Through Chemistry IV , 1990 , 321
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

[1] Pekala, R.W., J. Mater. Sci., 24, 3221 (1989).Google Scholar
[2] Pekala, R.W. and Stone, R.E. Polym, F.M.. Preprints, 29 (1), 204 (1988).Google Scholar
[3] Pekala, R.W. and Kong, F.M., Polym. Preprints, 30 (1), 221 (1989).Google Scholar
[4] Pekala, R.W., Alviso, C.T. and LeMay, J.D., submitted to J. Non-Cryst. Solids.Google Scholar
[5] Tillotson, T. and Hrubesh, L.W., in Better Ceramics Through Chemistry III, edited by Brinker, C.J., Clark, D.E. and Ulrich, D.R., (Mater. Res. Soc. Symp. Proc., 121, Reno, NV 1988), p. 685–689.Google Scholar
[6] Hrubesh, L.W., Tillotson, T.M. and Poco, J., this Issue.Google Scholar
[7] Woignier, T., Phalippou, J. and Vacher, R., J. Mat. Res., 4(3), 688 (1989).Google Scholar
[8] Woignier, T., Phalippou, J., Sempere, R. and Pelous, J., J. Phys. France, 49, 289, (1988).Google Scholar
[9] Gronauer, M., Kadur, A. and Fricke, J. in Aerogels, Fricke, J., ed., Springer-Verlag, Berlin, 1985, p167.Google Scholar
[10] LeMay, J.D., Pekala, R.W. and Hrubesh, L.W., Pacific Polym. Preprints., 1, 295 (1989).Google Scholar
[11] Brinker, C.J. and Scherer, G.W., J. Non-Cryst. Solids, 70, 301 (1985).Google Scholar
[12] Schaefer, D.W. and Keefer, K.D., in Better Ceramics Through Chemistry, edited by Brinker, C.J., Clark, D.E. and Ulrich, D.R. (Mater. Res. Soc. Symp. Proc., 32, Albuquerque, NM 1984), pp. 1–14.Google Scholar
[13] Schaefer, D.W. and Pekala, R.W., to be publishedGoogle Scholar