Chapter 32. The Effect of Fiber Loading on the Mechanical Behavior of Unidirectional CFCMCs

  1. John B. Wachtman Jr.
  1. Todd L. Jessen1,
  2. Barry A. Bender1 and
  3. Victor A. Greenhut2

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314876.ch32

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4

How to Cite

Jessen, T. L., Bender, B. A. and Greenhut, V. A. (1996) The Effect of Fiber Loading on the Mechanical Behavior of Unidirectional CFCMCs, in Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314876.ch32

Author Information

  1. 1

    U.S. Naval Research Laboratory, Washington, DC 20375-5343

  2. 2

    Rutgers University, Piscataway, NJ 08855-0909

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1996

ISBN Information

Print ISBN: 9780470375433

Online ISBN: 9780470314876

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Keywords:

  • thermochemical stability of the fibers;
  • thermoelastic compatibility between the phases;
  • flexure specimen results;
  • fiber volume fraction;
  • composite density

Summary

A series of unidirectionally-aligned SiC fiber/zirconium titanate matrix composites were prepared with nominally 0.35, 0.50, and 0.70 volume fraction fiber loadings. The composite processing methodology was similar for all billets. The ultimate strength and work-of-fracture were found to be similar at the 0.35 and 0.50 fraction loadings and decrease significantly at the 0.70 loading. Fiber deformation, strong bonding, and increased porosity are a result of the increased fiber/fiber contacts present during processing of the 0.70 loaded composites. These factors are identified as the main cause for the mechanical behavior decline.