Chapter 13. SiC Matrix Composites Reinforced with Internally-Synthesized TiB2
- John B. Wachtman Jr.
Published Online: 28 MAR 2008
Copyright © 1989 The American Ceramic Society, Inc.
A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10
How to Cite
Tani, T. and Wada, S. (1989) SiC Matrix Composites Reinforced with Internally-Synthesized TiB2, in A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310588.ch13
- Published Online: 28 MAR 2008
- Published Print: 1 JAN 1989
Print ISBN: 9780470374870
Online ISBN: 9780470310588
- partially-stabilized zirconiu;
- cyclic crack-growth;
- cyclic fatigue behavior;
- zirconiu-toughened alumina;
- silicon nitride
A new process of preparing silicon carbide matrix composites by the internal synthesis of reinforcing particulate has been developed. SiC powder mixed with titanium-containing material and boron-containing material was hot-pressed at 2150°C in an argon atmosphere. The boron molar content in the mixture was designed to be more than twice that of Ti. In the process of hot pressing, the titanium-containing material and boron-containing material reacted to form TiB2 The synthesis of TiB2 was followed by the densification of SiC matrix with the aid of the excess boron-containing materials. Among eight reaction systems to synthesize TiB2 the following three systems successfully produced dense SiC-TiB2 composites: TiN+2BTiB2+1/2N2; TiO2+0.5B4C+1.5CTiB2+2CO; 0.5TiO2+0.5 TiC+0.5B4CTiB2+CO.