Chapter 64. Temperature Dependence on the Strength and Stress Rupture Behavior of a Carbon-Fiber Reinforced Silicon Carbide Matrix (C/SiC) Composite

  1. Waltraud M. Kriven and
  2. Hua-Tay Lin
  1. Michael J. Verrilli and
  2. Anthony Calomino

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294826.ch64

27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: B: Ceramic Engineering and Science Proceedings, Volume 24, Issue 4

27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: B: Ceramic Engineering and Science Proceedings, Volume 24, Issue 4

How to Cite

Verrilli, M. J. and Calomino, A. (2008) Temperature Dependence on the Strength and Stress Rupture Behavior of a Carbon-Fiber Reinforced Silicon Carbide Matrix (C/SiC) Composite, in 27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: B: Ceramic Engineering and Science Proceedings, Volume 24, Issue 4 (eds W. M. Kriven and H.-T. Lin), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294826.ch64

Author Information

  1. NASA Glenn Research Center, 21000 Brookpark Road, Cleveland, Ohio 44135

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2003

ISBN Information

Print ISBN: 9780470375846

Online ISBN: 9780470294826

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Keywords:

  • carbon- fiber;
  • silicon carbide;
  • oxygen;
  • oxidation rate;
  • reinforcing carbon

Summary

Tensile strengths and stress rupture lives of carbon- fiber reinforced silicon carbide (C/SiC) specimens were measured at 800 °C and are compared to previously reported 1200 °C data. All tests were conducted in an environmental chamber containing 1000 ppm of oxygen in argon. The average 800 °C tensile strength of 610 MPa is 10% greater than at 1200 °C. Average stress rupture lives at 800 °C were 2.5 times longer than those obtained at 1200 °C. The difference in the 800 and 1200 °C lives is related to the oxidation rate of the reinforcing carbon fibers, which is the primary damage mode of C/SiC composites in oxygen-containing environments.