Chapter 13. Fabrication and Mechanical Properties of Si3N4 Based Composites with Layer Structure

  1. John B. Wachtman Jr.
  1. Yasuhiro Shigegaki1,
  2. Manuel E. Brito2,
  3. Kiyoshi Hirao2 and
  4. Motohiro Toriyama2

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314876.ch13

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

Shigegaki, Y., Brito, M. E., Hirao, K. and Toriyama, M. (1996) Fabrication and Mechanical Properties of Si3N4 Based Composites with Layer Structure, 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.ch13

Author Information

  1. 1

    Synergy Ceramics Laboratory, Fine Ceramics Research Association 1-1, Hirate-cho, Kita-ku, Nagoya 462 Japan

  2. 2

    National Industrial Research Institute of Nagoya 1-1, Hirate-cho, Kita-ku, Nagoya 462 Japan

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:

  • silicon nitrides;
  • alternate dense;
  • porous layers;
  • tape-casting;
  • elastic modulus

Summary

Silicon nitrides with a layered structure composed of alternate dense and porous layers were fabricated by a tape-casting and laminating technique. Mechanical properties were evaluated as well. The layered structure with dense layers of 60 μm and porous layers of 40 μm was obtained by adding 70 vol% of β-Si3N4 whisker to the porous layer. This material presented a reasonably low elastic modulus and a relatively high fracture stress, although it incorporated the porous layers with a porosity of 32.9 %.