Chapter 28. Effect of Post-Sintering Microwave Treatments on the Mechanical Performance of Silicon Nitride

  1. John B. Wachtman Jr
  1. M. K. Ferber,
  2. T. N. Tiegs and
  3. M. G. Jenkins

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313848.ch28

Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 9/10

Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 9/10

How to Cite

Ferber, M. K., Tiegs, T. N. and Jenkins, M. G. (1991) Effect of Post-Sintering Microwave Treatments on the Mechanical Performance of Silicon Nitride, in Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313848.ch28

Author Information

  1. Oak Ridge National Laboratory Oak Ridge, TN 37831-6064

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1991

ISBN Information

Print ISBN: 9780470375105

Online ISBN: 9780470313848

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Keywords:

  • nitride;
  • alumina;
  • pyrometer;
  • magnesia;
  • thermocouple

Summary

Post-sintering heat treatments were used to vary the microstructural characteristics in two types of hot pressed silicon nitride. Particular emphasis was placed upon comparing changes in grain size, degree of crystallization of the intergranular phases, and chemistry of the intergranular phases resulting from conventional and microwave annealing. The effect of these post-sintering treatments on the mechanical performance was evaluated by measuring the creep deflection in flexure as a function of time and applied stress of 1260° and 1370°C in air.