Hostname: page-component-5c6d5d7d68-thh2z Total loading time: 0 Render date: 2024-08-19T02:56:18.800Z Has data issue: false hasContentIssue false
  • English
  • Français

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
Get access

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

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