Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-26T07:28:48.482Z Has data issue: false hasContentIssue false
  • English
  • Français

Silicon Carbonitride Ceramics Produced by Pyrolysis of Polymer Ceramic Precursor

Published online by Cambridge University Press:  31 January 2011

J. Wan ,
M. J. Gasch  and
A. K. Mukherjee
J. Wan
Affiliation:
Department of Materials Science and Engineering, University of California, One Shields Avenue, Davis, California 95616
M. J. Gasch
Affiliation:
Department of Materials Science and Engineering, University of California, One Shields Avenue, Davis, California 95616
A. K. Mukherjee
Affiliation:
Department of Materials Science and Engineering, University of California, One Shields Avenue, Davis, California 95616
Get access

Abstract

Two processing routes were explored to produce crack-free amorphous Si–N–C ceramics by pyrolysis of polyureasilazane ceramic precursor. Using a warm-pressing/ pyrolysis route, a ceramic body with certain amount of open porosity was produced; densification behavior during pyrolysis was examined. A prepyrolysis/binding/pyrolysis route was also developed. Ceramics formed using this route were characterized by higher density, lower volume shrinkage during consolidation, and larger viable material size. Open porosity was essentially absent in consolidated amorphous materials produced by this second route. Recrystallization of the consolidated amorphous ceramics resulted in a Si3N4/SiC nanocomposite with both silicon nitride and silicon carbide grains in the nanometric size range.

Type
Rapid Communications
Information
Journal of Materials Research , Volume 15 , Issue 8 , August 2000 , pp. 1657 - 1660
Copyright
Copyright © Materials Research Society 2000

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.Riedel, R. and Dressler, W., Ceram. Int. 22, 233 (1996).CrossRefGoogle Scholar
2.Bill, J. and Aldinger, F., Adv. Mater. 7, 775 (1995).CrossRefGoogle Scholar
3.Verbeek, W., U.S. Patent 3 853 567 (1974).Google Scholar
4.Bill, J. and Aldinger, F., Adv. Mater. 7, 775 (1995).CrossRefGoogle Scholar
5.Riedel, R., Passing, G., Schönfelder, H., and Brook, R.J., Nature 355, 714 (1992).CrossRefGoogle Scholar
6.Riedel, R., in Materials Science and Technology: A Comprehensive Treatment, Vol. 17B, Processing of Ceramics, Part II, edited by Cahn, R.W., Haasen, P., and Kramer, E.J. (VCH, Weinheim, Germany, 1996), p. 1.Google Scholar
7.Bill, J., Seitz, J., Thurn, G., Durr, J., Canel, J., Janos, B.Z., Jalowiecki, A., Sauter, D., Schempp, S., Lamparter, H.P., Mayer, J., and Aldinger, F., Phys. Stat. Solidi A. 166, 269 (1998).3.0.CO;2-7>CrossRefGoogle Scholar
8.Kleebe, H-J., Suttor, D., and Ziegler, G., in Precursor Derived Ceramics: Synthesis, Structures and High Temperature Mechanical Properties, edited by Bill, J., Wakai, F., and Aldinger, F. (Wiley-VCH, New York, 1999), p. 13.Google Scholar
9.Kleebe, H-J., Phys. Stat. Sol. A, 166, 297 (1998).3.0.CO;2-3>CrossRefGoogle Scholar
10.Bill, J. and Aldinger, F., in Precursor Derived Ceramics: Synthesis, Structures and High Temperature Mechanical Properties, edited by Bill, J., Wakai, F., and Aldinger, F. (Wiley-VCH, New York, 1999), p. 33.CrossRefGoogle Scholar