Chapter 28. Elevated Temperature Crack Growth in Sic Whisker-Reinforced Alumina

  1. John B. Wachtman Jr.
  1. Karl Jakus and
  2. S. V. Nair

Published Online: 28 MAR 2008

DOI: 10.1002/9780470310496.ch28

Proceedings of the 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 7/8

Proceedings of the 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 7/8

How to Cite

Jakus, K. and Nair, S. V. (1988) Elevated Temperature Crack Growth in Sic Whisker-Reinforced Alumina, in Proceedings of the 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310496.ch28

Author Information

  1. Department of Mechanical Engineering University of Massachusetts Amherst, MA 01003

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1988

ISBN Information

Print ISBN: 9780470374801

Online ISBN: 9780470310496

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Keywords:

  • ceramic;
  • catastrophic;
  • tolerant;
  • utilizing;
  • parameters

Summary

Interrupted creep crack growth tests in argon gas atmosphere were conducted at 1100°C, 1200°C, and 1300°C with Sic whisker reinforced alumina specimens. Crack nucleation and growth was followed as a function of creep strain. It was found that the crack nucleation and growth characteristics of this composite fell in between that of a fine grain high purity monolithic alumina and a relatively large grain vitreous bonded alumina. Crack coalescence which left behind unbroken bridges were the dominant mechanism of crack growth. No evidence was found for high temperature whisker pullout.