Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-03T00:48:11.078Z Has data issue: false hasContentIssue false
  • English
  • Français

The Role of Water in Densification of Gels

Published online by Cambridge University Press:  15 February 2011

T. A. Gallo ,
C. J. Brinker ,
L. C. Klein  and
G. W. Scherer
T. A. Gallo
Affiliation:
Rutgers University, Ceramics Dept. Piscataway, NJ,
C. J. Brinker
Affiliation:
Sandia National Laboratories, Albuquerque, NM,
L. C. Klein
Affiliation:
Rutgers University, Ceramics Dept. Piscataway, NJ,
G. W. Scherer
Affiliation:
Corning Glass Works, Corning, NY
Get access

Abstract

The densification behavior of a gel-derived borosilicate glass was studied. Surface area, thermal gravimetric and infrared measurements were used to calculate the surface hydroxyl coverage as a function of time at several temperatures. Application of a viscous sintering model to the isothermal shrinkage data showed viscosity to increase isothermally by almost two orders of magnitude at the lowest investigated temperature. Although most of this increase is attributable to increased crosslinking accompanying dehydroxylation, structural relaxation was also shown to significantly affect the densification kinetics.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 32: Symposium B – Better Ceramics Through Chemistry I , 1984 , 85
Copyright
Copyright © Materials Research Society 1984

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. Yamane, M., Aso, S., Okano, S., Sakaino, T.. J. Mat. Sci. 14 (1979) 607–611.Google Scholar
2. Brinker, C. J., Keefer, K. D., Schaefer, D. W., and Ashley, C. S., J-Non-Crystal. Solids 48 (1982) 47–64.CrossRefGoogle Scholar
3. Zarzycki, J.. J. Non-Crystal. Solid 48 (1982) 105–116.CrossRefGoogle Scholar
4. Klein, L. C., Gallo, T. A. and Garvey, G. J.. J. Non-Crystal. Solids 63 (1984).CrossRefGoogle Scholar
5. Brinker, C. J. and Haaland, D. M. to be presented 1984 Annual Meeting of the Am. Ceram. Soc.Google Scholar
6. Kamiya, K., Sakka, S., Yamanaka, I.. Proc. 10th Internat. Cong. Glass 13 (1974) 44–47.Google Scholar
7. Brinker, C. J. and Scherer, G. W., Proceedings of Ultrastructure Processing of Ceramics, Glasses and Composites, Hench, L. L., Ulrich, D. R. Eds., John Wiley & Son, NY (1984).Google Scholar
8. Scherer, G. W., Brinker, C. J., Roth, E. P.. Submitted to J. Non- Cryst. Solids.Google Scholar
9. Hetherington, G., Jack, K. H. and Kennedy, J. C.. Phys. Chem. Glasses 5 (1964) 139–136.Google Scholar
10. Brinker, C. J. and Scherer, G. W., submitted to J. Non-Crystal. Solids.Google Scholar
11. Williams, J. P. et al. . Am. Ceram. Soc. Bull. 55 (1976) 524–527.Google Scholar
12. Iler, R. K., The Chemistry of Silica, John Wiley and Sons Inc., NY 1979.Google Scholar
13. Krol, D. M. and Van Lierop, J. G.. J. Non-Crystal. Solids 63 (1984)(1983).Google Scholar
14. Scherer, G. W.. J. Am. Ceram. Soc. 60 (1977) 236–46.CrossRefGoogle Scholar
15. Narayanaswany, O. S.. J. Am. Ceram. Soc. 54 [10] 491–498 (1975).CrossRefGoogle Scholar