Chapter 35. High-Temperature Performance and Retained Strength of an Oxide-Oxide Continuous Fibre Ceramic Composite

  1. Don Bray
  1. M. G. Jenkins1 and
  2. Sean S. Kohles2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294482.ch35

22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 19, Issue 3

22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 19, Issue 3

How to Cite

Jenkins, M. G. and Kohles, S. S. (1988) High-Temperature Performance and Retained Strength of an Oxide-Oxide Continuous Fibre Ceramic Composite, in 22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 19, Issue 3 (ed D. Bray), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294482.ch35

Author Information

  1. 1

    Department of Mechanical Engineering University of Washington Seattle, WA 98195-2600

  2. 2

    Department of Biomedical Engineering Worcester Polytechnic Institute Worcester, MA 01609-2280

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1988

ISBN Information

Print ISBN: 9780470375587

Online ISBN: 9780470294482

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Keywords:

  • ceramic;
  • monolithic;
  • equipment;
  • environment;
  • fractography

Summary

Oxide fibre-reinforced / oxide matrix ceramic composites have the potential of resisting high-temperature degradation in the increasingly aggressive environments of emerging applications for this still-evolving class of materials. An alumina (Nextel™) fibre-reinforced / alumina matrix composite with an oxidation-resistant boron nitride/silicon carbide interphase was investigated for its high temperature performance. Room-temperature tensile tests of specimens which had been exposed to 600, 800, 1000 and 1200°C temperatures in ambient air for 10 and 100 h revealed time- and temperature-dependent retained strength behaviour. The effects of residual stress state and degradation of the interphase material on resulting mechanical performance were evaluated using load-unload tensile tests. Impulse resonance tests for elastic modulus at temperature, thermogravimetric/differential thermal analyses and post-test fractography were used to substantiate the micro mechanics of the observed tensile behavior.