Chapter 13. Tensile Creep and Creep Rupture of SiC-Reinforced MoSi2

  1. John B. Wachtman Jr
  1. Jonathan D. French1,
  2. Sheldon M. Wiederhorn1 and
  3. John J. Petrovic2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314715.ch13

Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A: Ceramic Engineering and Science Proceedings, Volume 16, Issue 4

Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A: Ceramic Engineering and Science Proceedings, Volume 16, Issue 4

How to Cite

French, J. D., Wiederhorn, S. M. and Petrovic, J. J. (1995) Tensile Creep and Creep Rupture of SiC-Reinforced MoSi2, in Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A: Ceramic Engineering and Science Proceedings, Volume 16, Issue 4 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314715.ch13

Author Information

  1. 1

    Materials Science and Engineering Laboratory, The National Institute of Standards and Technology, Gaithersburg, MD 20899.

  2. 2

    Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM 87545.

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1995

ISBN Information

Print ISBN: 9780470375372

Online ISBN: 9780470314715

SEARCH

Keywords:

  • Sic-particulate-rein-forced;
  • creep;
  • superalloys;
  • reinforcement;
  • tensile

Summary

This paper compares the tensile creep and creep rupture of SiC-particulate-rein-forced MoSi2 produced by two different processing methods. Mechanical mixing of SiC particles and MoSi2 powder produced composites with SiC contents ranging from 10 to 40 volume percent. In situ processing by adding carbon to the MoSi2 starting powder produced SiC contents ranging from 0 to 25 vol%. The in situ composites were much more creep resistant than those made by mechanical mixing. The greater creep resistance of the in situ composites is due to the elimination of residual glass and the formation of Mo5Si3C. The creep resistance of the materials investigated here are only marginally better than that of existing single-crystal Ni-based superalloys.