Chapter 35. A Microstructural Study Comparing CFCMCs with Differing Mechanical Properties

  1. John B. Wachtman Jr.
  1. Todd L. Jessen,
  2. Barry A. Bender,
  3. Amitav Pattnaik and
  4. Richard K. Everett

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314500.ch35

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4

How to Cite

Jessen, T. L., Bender, B. A., Pattnaik, A. and Everett, R. K. (1994) A Microstructural Study Comparing CFCMCs with Differing Mechanical Properties, in Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314500.ch35

Author Information

  1. U.S. Naval Research Laboratory Washington, D.C. 20375-5343

Publication History

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

ISBN Information

Print ISBN: 9780470375327

Online ISBN: 9780470314500

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Keywords:

  • TEM analyses;
  • tessellation;
  • mesostructure;
  • mesoscale;
  • CVD-coating

Summary

Two fiber composites were prepared using BN-coated Nicalon fibers and a zirconium titanate matrix. The ultimate strengths for the composites were 1013 and 644 MPa respectively. Auger and TEM analyses did not identify any differences in BN coating composition, thickness, or interphase development which might explain the mechanical property differences. A tessellation technique, which quantifies the fiber/matrix distribution within the composites, was used to identify the mesostructure as a key determinant in the mechanical performance.