Chapter 11. Fracture Behavior of SiC Whisker-Reinforced Al2O3 with Modified Interfaces

  1. John B. Wachtman Jr.
  1. T. E. Steyer and
  2. K. T. Faber

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313978.ch11

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

Steyer, T. E. and Faber, K. T. (1994) Fracture Behavior of SiC Whisker-Reinforced Al2O3 with Modified Interfaces, 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.ch11

Author Information

  1. Northwestern University Department of Materials Science and Engineering Evanston, IL 60208–3108

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:

  • microarchitectures;
  • sensitivity;
  • extrusion;
  • demonstration;
  • innovative

Summary

Carbon-coated SiC whiskers have been examined as a function of coating thickness for reinforcement in Al2O3. A compliant carbon layer at the whisker/ matrix interface modifies the residual stress due to thermal expansion mismatch and changes the interfacial chemistry. The fracture behavior of this material has been observed using 4-point bending for strength and the double cantilever beam technique for fracture toughness and R-curve behavior. The strength and R-curve behavior of composites with and without whisker coatings of carbon are presented to evaluate the effect of modified interfaces on the mechanical performance of whisker composites.