Chapter 42. Properties of CVD BN-COATed Hi-Nicalon Fiber Reinforced SiC/SiC Composite

  1. Todd Jessen and
  2. Ersan Ustundag
  1. A. Saeki1,
  2. M. Takeda1,
  3. A. Yokoyama1 and
  4. T. Yoshida2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294628.ch42

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

Saeki, A., Takeda, M., Yokoyama, A. and Yoshida, T. (2000) Properties of CVD BN-COATed Hi-Nicalon Fiber Reinforced SiC/SiC Composite, 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.ch42

Author Information

  1. 1

    Research Laboratory, Nippon Carbon Co., Ltd., 1-1-1, Shin-urashima-cho, Kanagawa-ku, Yokohama 221-0031, Japan

  2. 2

    Ishikawajima-Harima Heavy Industries Co., Ltd. 1-15, Toyosu, 3-chome, Koto-ku, Tokyo, 135-8732, 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:

  • fiber-reinforced ceramic matrix composites;
  • oxide ceramic materials;
  • mechanical properties;
  • tensile test;
  • minicomposites

Summary

The boron nitride (BN) coating was applied on Hi-Nicalon by chemical vapor deposition (CVD) from boron trichloride, ammonia and hydrogen gases mixture. The BN coating contained hexagonal BN and 10 at. % carbon. The 3-D woven BN coated Hi-Nicalon fiber-reinforced SiC composite was fabricated by CVI+PIP combined process with different interphase thickness. Tensile strength of the composites at room temperature is 368 MPa for 0.35 μm BN and 390 MPa for 0.55 μm BN interphase thickness. 100-hour creep rupture stress of the composites at 900°C in air is 135 MPa, showing significant advantage of Hi-Nicalon fiber reinforced enhanced SiC composite (72 MPa).