Chapter 34. Microstructures and Mechanical Properties of Hi-Nicalon Fiber Reinforced Si3N4 Matrix Composites

  1. John B. Wachtman Jr.
  1. K. Nakano1,
  2. S. Kume1,
  3. K. Sasaki2 and
  4. H. Saka2

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314876.ch34

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

Nakano, K., Kume, S., Sasaki, K. and Saka, H. (1996) Microstructures and Mechanical Properties of Hi-Nicalon Fiber Reinforced Si3N4 Matrix Composites, 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.ch34

Author Information

  1. 1

    National Industrial Research Institute of Nagoya 462 (Japan)

  2. 2

    University of Nagoya 464 (Japan)

Publication History

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

ISBN Information

Print ISBN: 9780470375433

Online ISBN: 9780470314876

SEARCH

Keywords:

  • slurry route;
  • hot pressing;
  • microstructures of the composites;
  • flexural strength;
  • fracture toughness

Summary

1D BN-coated Hi-Nicalon fiber reinforced Si3N4 composites were fabricated by a slurry route followed by hot pressing. Microstructures of the composites were observed by either EPMA, SEM or TEM. Flexural strength and fracture toughness were measured at room temperature and 1400°C (Ar). BN-interphase seems to have loose bonding for a fiber and a matrix. Flexural strength and fracture toughness at RT were 702MPa and 20.2MPa√m, whereas those at 1400°C were 426MPa and 16.3MPa √m, respectively.