Chapter 21. Creep-Resistance of Developmental Polycrystalline Yttrium-Aluminum Garnet Fibers

  1. John B. Wachtman Jr.
  1. Gregory N. Morscher1,
  2. K. C. Chen2 and
  3. K. S. Mazdiyasni2

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314500.ch21

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4

How to Cite

Morscher, G. N., Chen, K. C. and Mazdiyasni, K. S. (1994) Creep-Resistance of Developmental Polycrystalline Yttrium-Aluminum Garnet Fibers, in Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314500.ch21

Author Information

  1. 1

    Case Western Reserve University, Cleveland, OH

  2. 2

    General Atomics, San Diego, CA

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1994

ISBN Information

Print ISBN: 9780470375327

Online ISBN: 9780470314500

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Keywords:

  • metal-organic;
  • ceramic matrix;
  • thermomechanical;
  • polycrystalline;
  • alumina-based

Summary

Bend stress relaxation (BSR) tests were performed on a developmental yttrium-aluminum garnet (YAG) polycrystalline fiber. The YAG fibers were 15 to 30 microns in diameter and were produced from metal-organic precursors. Bend stress relaxation ratios were determined as a function of temperature, time, and applied strain. The results show the YAG fibers are significantly more creep-resistant than currently available polycrystalline alumina-based fibers.