Chapter 5. Thermomechanical Behavior of Advanced SiC Fiber Multifilament Tows

  1. John B. Wachtman Jr.
  1. Hee Mann Yun and
  2. James A. Dicarlo

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314876.ch5

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4

How to Cite

Yun, H. M. and Dicarlo, J. A. (1996) Thermomechanical Behavior of Advanced SiC Fiber Multifilament Tows, in Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314876.ch5

Author Information

  1. NASA Lewis Research Center, Cleveland, Ohio

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1996

ISBN Information

Print ISBN: 9780470375433

Online ISBN: 9780470314876

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Keywords:

  • single fiber behavior;
  • multiple fiber behavior;
  • fast-fracture;
  • tensile strength;
  • stress-rupture

Summary

In order to relate single fiber behavior to multiple fiber behavior in composites, fast-fracture tensile strength, creep, and stress-rupture studies were conducted on advanced SiC fiber multifilament tows in the temperature range from 20 to 1400 C in air as well as in inert environments. For conditions of small fiber creep (short times and low temperatures), the tow results of this study confirm the ability of limited single fiber data to model the strength behavior of multiple fibers in a bundle. For conditions of high creep (long times and high temperatures), further studies are needed to explain tow rupture behavior being better than average single fiber behavior.