Chapter 23. Thermal Stability of the Low Oxygen Silicon Carbide Fibers Derived from Polycarbosilane

  1. John B. Wachtman Jr.
  1. M. Takeda1,
  2. Y. Imai1,
  3. H. Ichikawa1,
  4. T. Ishikawa1,
  5. N. Kasai2,
  6. T. Suguchi2 and
  7. K. Okamura3

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313954.ch23

Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 7/8

Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 7/8

How to Cite

Takeda, M., Imai, Y., Ichikawa, H., Ishikawa, T., Kasai, N., Suguchi, T. and Okamura, K. (1994) Thermal Stability of the Low Oxygen Silicon Carbide Fibers Derived from Polycarbosilane, in Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313954.ch23

Author Information

  1. 1

    Nippon Carbon Co., Ltd. Yokohama, 221 Japan

  2. 2

    Japan Atomic Energy Research Institute Takasaki, Gunma, 370–12 Japan

  3. 3

    University of Osaka Prefecture Sakai, Osaka, 591 Japan

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1994

ISBN Information

Print ISBN: 9780470375174

Online ISBN: 9780470313954

SEARCH

Keywords:

  • atmosphere;
  • helium;
  • irradiation;
  • mechanical;
  • ceramic

Summary

SiC fibers with excellent thermal stability have been developed by means of reducing their oxygen content. Polycarbosilane fibers were cured by electron beam irradiation in a stream of helium and were pyrolized in an inert atmosphere. These SiC fibers were continuous, in multi-filament form, consisting of Si-1.3C-0.020 by atomic ratio. They had a high tensile strength and elastic modulus of 2.8GPa and 270GPa, respectively. At high temperature, the low oxygen SiC fibers were observed to undergo no chemical decompositions and retained good tensile properties. The mechanical properties of the SiC composites reinforced by these SiC fibers were also investigated.