Chapter 34. Matrix Cracking Behavior in Fiber and Whisker Reinforced Ceramic Composites

  1. John B. Wachtman Jr.
  1. Raj N. Singh

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313978.ch34

Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 9/10

Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 9/10

How to Cite

Singh, R. N. (1994) Matrix Cracking Behavior in Fiber and Whisker Reinforced Ceramic Composites, in Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313978.ch34

Author Information

  1. Department of Materials Science and Engineering, University of Cincinnati, Cincinnati, Ohio 45221–0012

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1994

ISBN Information

Print ISBN: 9780470375198

Online ISBN: 9780470313978

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Keywords:

  • monolithic material;
  • oxidation;
  • diameter;
  • theoretical density;
  • indentation fracture

Summary

The effect of whisker reinforcement of a zircon matrix phase on first matrix cracking behavior in a zircon composite uniaxially reinforced with silicon carbide filaments was studied. Incorporation of Sic whiskers into the zircon matrix resulted into increased strength but the ceramic failure was still brittle in nature. In comparison, zircon composites reinforced with SiC whiskers and filaments displayed toughened composite-like behavior with a significantly higher first matrix cracking strength and toughness than the composites reinforced with only Sic filaments. These results were related to measured changes in the fiber-matrix interfacial shear strength, and demonstrated that composites with high first matrix cracking strength and toughness can be produced by independently tailoring the matrix and the fiber-matrix interfacial properties.