Chapter 24. Development of Lower Cost Si3N4
- John B. Wachtman Jr
Published Online: 26 MAR 2008
Copyright © 1991 The American Ceramic Society, Inc.
Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 9/10
How to Cite
Quadir, T., Rice, R. W., Chakraverty, J. C., Breindel, J. A. and Wu, C. C. (1991) Development of Lower Cost Si3N4, in Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313848.ch24
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 1991
Print ISBN: 9780470375105
Online ISBN: 9780470313848
The high costs of Si1N4 powders are driven extensively by achieving low impurity, especially oxygen, levels which can limit high-temperature, but not necessarily room temperature, properties. High Si3N4 powder costs seriously limit lower temperature, e.g., wear, applications, which do not necessarily require such costly material. Therefore, a program was undertaken to develop significantly lower cost Si3N4. Densities, phase contents, microstructure, and room temperature mechanical properties are reported showing good promise of this development.