Chapter 55. Processing and Characterisation of Monolithic Molybdenum Disilicide and Silicon Carbide Fibre-Reinforced MoSi2 Matrix Composites

  1. John B. Wachtman Jr.
  1. A. R. Bhatti

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314555.ch55

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - B: Ceramic Engineering and Science Proceedings, Volume 15, Issue 5

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - B: Ceramic Engineering and Science Proceedings, Volume 15, Issue 5

How to Cite

Bhatti, A. R. (1994) Processing and Characterisation of Monolithic Molybdenum Disilicide and Silicon Carbide Fibre-Reinforced MoSi2 Matrix Composites, in Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - B: Ceramic Engineering and Science Proceedings, Volume 15, Issue 5 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314555.ch55

Author Information

  1. Department of Materials & Structures, DRA Farnborough, Hampshire, GU14 6TD, UK

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1994

ISBN Information

Print ISBN: 9780470375334

Online ISBN: 9780470314555

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Keywords:

  • hot isostatic pressing;
  • commercial powder;
  • microstructural examination;
  • molybdenum disilicide;
  • aero-engines

Summary

High density MoSi2 has been produced by hot isostatic pressing of a commercial powder. Microstructural examination has shown that the bulk of the material is tetragonal MoSi2 but a small amount of amorphous SiO2 is also present. Preliminary work on the hot pressing of a SiC fibre (Textron SCS-6) reinforced MoSi2 matrix shows that matrix cracking occurs during the high temperature processing of the composite. This is attributed to the thermal expansion mismatch between the fibre and the matrix. Key issues and possible routes concerning the fabrication of continuous fibre-reinforced MoSi2 are discussed.