Chapter 10. SiC-MoSi2 Composites

  1. John B. Wachtman Jr.
  1. D. H Carter,
  2. J. J. Petrovic,
  3. R. E. Honneu and
  4. W. S. Gibbs

Published Online: 28 MAR 2008

DOI: 10.1002/9780470310588.ch10

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

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

Carter, D. H., Petrovic, J. J., Honneu, R. E. and Gibbs, W. S. (1989) SiC-MoSi2 Composites, 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.ch10

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780470374870

Online ISBN: 9780470310588

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Keywords:

  • titanium dibode composiles;
  • chemical vapor ifiltration;
  • diboride;
  • matrix expansion;
  • electrical conductivity

Summary

Previous studies have shown that SiC whisker-reinforced MoSi2 is an excellent candidate material for structural use at elevated temperatures. The yield strength at 1400°C was doubled with the addition of Los Alamos VLS SiC whiskers, and increased by a factor of five with the addition of VS SiC whiskers, despite a nonoptimal distribution of the reinforcement resulting from dry blending fabrication procedures. A more optimal wet processing technique, providing a much more uniform distribution of the whisker reinforcement, will be discussed. Activities directed at alloying MoSi2 with other silicides to improve the mechanical properties of the matrix material will also be described.