Chapter 46. Modeling of Toughening Mechanism for a Particulate Ceramic Matrix Composite

  1. John B. Wachtman Jr.
  1. M. Taya,
  2. T. Mori,
  3. S. Hayashi and
  4. A. S. Kobayashi

Published Online: 28 MAR 2008

DOI: 10.1002/9780470310588.ch46

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

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

How to Cite

Taya, M., Mori, T., Hayashi, S. and Kobayashi, A. S. (1989) Modeling of Toughening Mechanism for a Particulate Ceramic Matrix Composite, in A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310588.ch46

Author Information

  1. Dept. of Mechanical Engineering University of Washington Seattle, WA 98195

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780470374870

Online ISBN: 9780470310588

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Keywords:

  • pyrotechnic components;
  • lithia-alumina-silica;
  • metallic alloys;
  • metal seal process;
  • coefficients of thermal expansion

Summary

It is well known that particulate reinforcement increases the fracture toughness which we also have confirmed in the case of TiB2 particulate/SiC matrix composite. Unlike fiber reinforcement, the toughening mechanism by particulate reinforcement has not been well modeled.

In this paper, we propose an analytical model which can account for the effect of particulates on the increase in the overall toughening of the composite. The analytical model is an extension of the Mori-Mura's model developed for a fibrous composite. The fracture toughness predicted by this model is then compared with our recent experimental results, resulting in a reasonably good agreement.