Chapter 12. Investigation of Environmental Effects on the Mechanical Properties of Si3N4 and SiC Ceramics

  1. John B. Wachtman Jr.
  1. N. L. Hecht,
  2. D. E. McCullum and
  3. G. A. Graves

Published Online: 26 MAR 2008

DOI: 10.1002/9780470310557.ch12

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 7/8

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 7/8

How to Cite

Hecht, N. L., McCullum, D. E. and Graves, G. A. (2008) Investigation of Environmental Effects on the Mechanical Properties of Si3N4 and SiC Ceramics, in A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310557.ch12

Author Information

  1. University of Dayton Dayton, OH

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780470374863

Online ISBN: 9780470310557

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Keywords:

  • chemical vapor deposition;
  • fiber-reinforced ceramic composites;
  • chemical vapor infiltration;
  • high fracture toughness;
  • carbon-carbon composites

Summary

The University of Dayton is conducting a three-phase program to investigate the effects of environment on the mechanical behavior of commercially available ceramics being considered for heat engine applications. Phase I, concerned with the evaluation of transformation toughened ceramics, has been completed. Phases II and III are concerned with the evaluation of SiC and Si3N4 ceramics. Microstructure, chemistry, physical properties, and mechanical behavior at 25°–1450°C are being investigated. These evaluations have focused on theflexural strength, tensile strength, and dynamic fatigue of these materials from 1000°–1450°C.