Chapter 54. Strength and Corrosion Behavior of a SiC Particulate Reinforced Al2O3 Composite in Hot Coal Combustion Environments

  1. John B. Wachtman Jr.
  1. Kristin Breder1,
  2. Jason M. Canon2 and
  3. Randy J. Parten1

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314821.ch54

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

Breder, K., Canon, J. M. and Parten, R. J. (1996) Strength and Corrosion Behavior of a SiC Particulate Reinforced Al2O3 Composite in Hot Coal Combustion Environments, 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.ch54

Author Information

  1. 1

    High Temperature Materials Laboratory, Oak Ridge National Laboratory, Oak Ridge, TN 37831–6069

  2. 2

    University of Missouri-Rolla, Rolla, MO 65401

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:

  • combustors;
  • siliconized;
  • thermal conductivity;
  • combustion;
  • variability

Summary

As part of an effort to evaluate the use of advanced ceramics in a new generation of coal-fired power plants, a SiC particulate reinforced Al2O3 has been exposed to corrosive coal slag in a laboratory furnace and two pilot scale combustors. Initial results indicate that the laboratory experiments are valuable additions to more expensive pilot plant experiments. The results show increased corrosive attack with increased temperature, and that only slight changes in temperature may significantly alter the degree of strength degradation due to corrosive attack. The present results are part of a larger experimental matrix evaluating the behavior of ceramics in the coal combustion environment.