Chapter 60. Properties of Reaction-Bonded Silicon Nitride Made from High Purity Silicon Powder

  1. John B. Wachtman Jr.
  1. J. S. Haggerty1,
  2. A. Lightfoot1,
  3. J. E. Ritter2,
  4. S. V. Nair2 and
  5. P. Gennari2

Published Online: 28 MAR 2008

DOI: 10.1002/9780470310496.ch60

Proceedings of the 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 7/8

Proceedings of the 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 7/8

How to Cite

Haggerty, J. S., Lightfoot, A., Ritter, J. E., Nair, S. V. and Gennari, P. (1988) Properties of Reaction-Bonded Silicon Nitride Made from High Purity Silicon Powder, in Proceedings of the 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310496.ch60

Author Information

  1. 1

    Massachusetts Institute of Technology Cambridge, MA

  2. 2

    University of Massachusetts Amherst, MA

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1988

ISBN Information

Print ISBN: 9780470374801

Online ISBN: 9780470310496

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Keywords:

  • sintering;
  • crystallite;
  • parameters;
  • metallic contamination;
  • microstructure

Summary

Unique processing permits fabrication of RBSN samples containing exceptionally small defects. These samples nitride to completion in less than 1 hat 1400°C and exhibit average room temperature strengths of 531 MPa (for 76% dense RBSN) as well as excellent toughness and hardness. Room temperature strengths of as-processed samples are related to flaw size and shape by a fracture mechanics model. To determine oxidation resistance, samples were heat-treated in air for 1 and 50 h at 1000° and 1400°C, and their weight gain and room temperature strengths were measured. These weight-gain and strength results for RBSN are compared to those of HPSN.