Chapter 12. Effects of SiC Whisker Treatments on the Performance of SiC Hiskewalumina Matrix Composites

  1. John B. Wachtman Jr.
  1. Dongxin Qi and
  2. Roy T. Coyle

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313978.ch12

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

Qi, D. and Coyle, R. T. (1994) Effects of SiC Whisker Treatments on the Performance of SiC Hiskewalumina Matrix 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.ch12

Author Information

  1. Unocal's Science and Technology Division, Unocal Corporation, Brea, CA 92621

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:

  • sinterability;
  • agglomeration;
  • nanocrystalline;
  • complexity;
  • thermo-mechanical processing

Summary

As-synthesized silicon carbide (SiC) whiskers usually need various treatments to remove non-whisker materials before being used as composite reinforcements. Understanding the effects of these treatments on the properties of whiskers and whisker containing composites is of great importance to whisker production and composite manufacturing. The SiC whiskers used in this study were produced by a carbothermal process. After different treatments, such as acid washing and firing in air, the whiskers were incorporated into alumina matrix composites. It was noted that some whisker treatments had considerable effects on the strength and toughness of the resultant composites. These effects were closely correlated with the whisker surface chemistry and interface bonding of the composites.