Chapter 11. High-Temperature Deformation Behavior of Polycrystalline Yttrium Aluminum Garnet (YAG)

  1. John B. Wachtman Jr
  1. T. A. Parthasarathy,
  2. T. Mah and
  3. K. Keller

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313848.ch11

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

Parthasarathy, T. A., Mah, T. and Keller, K. (1991) High-Temperature Deformation Behavior of Polycrystalline Yttrium Aluminum Garnet (YAG), 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.ch11

Author Information

  1. Universal Energy Systems, Inc. Dayton, OH 45432

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:

  • polycrystalline;
  • aluminum;
  • filaments;
  • atmosphere;
  • material

Summary

The high-temperature deformation behavior of polycrystalline yttrium aluminum garnet (YAG) has been investigated using constant displacement rate compression tests conducted in vacuum. The behavior in the strain rate regime of 10−5-10−3/S in the temperature range of 1400°-1610°C was studied and compared with available data on polycrystalline alumina and mullite. Polycrystalline YAG was found to behave in a manner similar to alumina but with a slightly better creep resistance. Mullite was significantly better at 1400°C and marginally superior at 1500°C.