Chapter 51. Creep and Cyclic Fatigue Behaviour of SiC/SiC Composites

  1. Todd Jessen and
  2. Ersan Ustundag
  1. Mineo Mizuno1,
  2. Shijie Zhu2 and
  3. Yutaka Kagawa3

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294628.ch51

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3

How to Cite

Mizuno, M., Zhu, S. and Kagawa, Y. (2000) Creep and Cyclic Fatigue Behaviour of SiC/SiC Composites, in 24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3 (eds T. Jessen and E. Ustundag), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294628.ch51

Author Information

  1. 1

    Japan Fine Ceramics Center, Nagoya, Japan

  2. 2

    The University of Electro-Communications, Tokyo, Japan

  3. 3

    The University of Tokyo, Tokyo, Japan

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2000

ISBN Information

Print ISBN: 9780470375686

Online ISBN: 9780470294628

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Keywords:

  • ceramic matrix composites;
  • interlaminar fracture properties;
  • crack growth;
  • strain energy release;
  • bending tests

Summary

Creep and cyclic fatigue tests of Standard SiC/SiC1, Enhanced SiC/SiC2 and Hi-Nicalon™/ SiC3 were carried out in pure argon and air at 1000–1300 °C. The stress-strain hysteresis loops during fatigue and creep were studied. The change of Young's modulus during creep and fatigue was analyzed and compared among the three kinds of materials. In air, creep strain rates of Hi-Nicalon™/SiC were similar to those of Enhanced SiC/SiC, but much lower than those of Standard SiC/SiC. Consequently, the time to rupture at a given stress in Hi-Nicalon™/SiC was similar to that in Enhanced SiC/SiC, but much longer than in Standard SiC/SiC. In argon, creep rates of Standard SiC/SiC was the lowest, then Hi-Nicalon™/SiC, while the Enhanced SiC/SiC had the highest creep rate. But, the time to rupture of Standard SiC/SiC was the shortest, and Hi-Nicalon™/SiC had the longest life. Fatigue resistance of Hi-Nicalon™/SiC was similar to that of Enhanced SiC/SiC, but much better than Standard SiC/SiC in air. The effect of oxygen content on fatigue resistance was evaluated. The creep-fatigue-environment interaction in SiC/SiC composites was discussed.