Chapter 9. Silicon Carbide Whisker Reinforced Alumina

  1. John B. Wachtman Jr.
  1. Bernard J. Wrona,
  2. James F. Rhodes and
  3. William M. Rogers

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313978.ch9

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

Wrona, B. J., Rhodes, J. F. and Rogers, W. M. (2008) Silicon Carbide Whisker Reinforced Alumina, 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.ch9

Author Information

  1. Advanced Composite Materials Corporation 1525 S. Buncombe Road Greer, SC 29651

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:

  • deficiency;
  • coefficient;
  • formalism;
  • parameters;
  • thermoplastic binder

Summary

Development of technology to commercially produce silicon carbide whiskers began in the early 1970's. Since then, researchers have shown that reinforcement with SiC whiskers markedly improves mechanical properties of alumina composites. By increasing fracture toughness from 2 7 MPa m1/2 for alumina to 6.6 MPa m1/2 for SiC whisker reinforced alumna, the composite is less sensitive to flaw size resulting in improved resistance to crack growth. The improved fracture toughness, high temperature strength, and hardness has led to commercial applications such as cutting tool inserts, beverage-can forming tools and wear resistant parts.