Chapter 20. Nano-Sized SiC Particulates Dispersed SiAlON Ceramics

  1. John B. Wachtman Jr.
  1. T. Mizutani1,
  2. M. Sando2,
  3. M. E. Brito2 and
  4. K. Niihara3

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314821.ch20

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A: Ceramic Engineering and Science Proceedings, Volume 17, Issue 3

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A: Ceramic Engineering and Science Proceedings, Volume 17, Issue 3

How to Cite

Mizutani, T., Sando, M., Brito, M. E. and Niihara, K. (1996) Nano-Sized SiC Particulates Dispersed SiAlON Ceramics, in Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A: Ceramic Engineering and Science Proceedings, Volume 17, Issue 3 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314821.ch20

Author Information

  1. 1

    Fine Ceramics Research Association, Nagoya, Japan

  2. 2

    National Industrial Research Institute, Nagoya, Japan

  3. 3

    ISIR. Osaka University, Osaka, Japan

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1996

ISBN Information

Print ISBN: 9780470375426

Online ISBN: 9780470314821

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Keywords:

  • compositions;
  • fracture energy;
  • dispersion;
  • characterized;
  • conventional

Summary

Dispersion effects of the small amount (0–8vol%) of nano-sized β-SiC particulates were studied for the compositions (Z=o.5–4.5) of Si6-zAlzO3N8-z by hot-pressing. At the composition (Z=4.5) in which secondary phases (8H-AIN polytypoid, etc.) appeared, the toughness or fracture energy was remarkably promoted from K_,=3.5 to 4 . 5MPa√m by annealing (1850°C × 8.5h) after hot-pressing (1850°C × 30MPa × 0.5h), and peaked at only lvol%SiC.