Chapter 6. SiC Continuous Fiber-Reinforced Si3N4 by Infiltration and Reaction Bonding
- John B. Wachtman Jr.
Published Online: 26 MAR 2008
Copyright © 1992 The American Ceramics Society
Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 9/10
How to Cite
Brandt, J., Rundgren, K., Pompe, R., Swan, H., O'Meara, C., Lundberg, R. and Pejryd, L. (1994) SiC Continuous Fiber-Reinforced Si3N4 by Infiltration and Reaction Bonding, in Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313978.ch6
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 1994
Print ISBN: 9780470375198
Online ISBN: 9780470313978
Long fiber ceramic matrix composites (CMC) can be manufactured by a number of processing techniques. Unfortunately, there are several limitations to each technique such as long processing time (CVI) or shape limitations (Hot Pressing). A favorable method to produce Sic-fiber-reinforced Si3N4 is to infiltrate/consolidate preforms of SiC fibers with submicron Si/Si3N4 particle slurries and subsequently reaction bond the matrix. To avoid high temperature degradation of the flbers during the reaction bonding process additives lowering the nitridation temperature and time were used. Processing, microstructure and mechanical properties of the composites will be discussed. The results to date show that the fiber bundles are almost completely impregnated by the infiltration technique used. Also, for carbon coated and uncoated SiC fiber CMCs there are noticeable differences in fracture behavior.