Chapter 14. Boron Carbide Whisker and Platelet Reinforced Ceramic Matrix Composites

  1. John B. Wachtman Jr.
  1. Jenq Liu1,
  2. P. Darrell Ownby1 and
  3. Sam C. Weaver2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313978.ch14

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

Liu, J., Ownby, P. D. and Weaver, S. C. (1994) Boron Carbide Whisker and Platelet Reinforced Ceramic 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.ch14

Author Information

  1. 1

    Ceramic Engineering Department University of Missouri-Rolla Rolla, Missouri 65401

  2. 2

    Third Millennium Technologies Inc. 120 Sherlake Drive P.O. Box 3556 Knoxville, TN 7933–1556

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:

  • polyacetal binders;
  • deformation;
  • ceramic powders;
  • unrealiability;
  • thermoplastic

Summary

Boron carbide whisker and platelet reinforced alumina and boron carbide whisker reinforced silicon carbide composites were prepared by hot-pressing. The mechanical properties of hot-pressed boron carbide platelet and whisker reinforced composites are better than the inherent ceramic matrix. A maximum fracture toughness, KIc of 9.5 MPam1/2 is achieved for alumina/boron carbide whisker composites, 8.6 MPam1/2 is achieved for alumina/boron carbide platelet composites and 3.8 MPam1/2 is achieved for silicon carbide/boron carbide whisker composites. The fracture toughness is dependent on the volume fraction of the platelets and whiskers.