Chapter 24. Tensile Creep Rupture Behavior of Alumina-Based Polycrystalline Oxide Fibers

  1. John B. Wachtman Jr.
  1. D. J. Pysher and
  2. R. E. Tressler

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313954.ch24

Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 7/8

Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 7/8

How to Cite

Pysher, D. J. and Tressler, R. E. (1994) Tensile Creep Rupture Behavior of Alumina-Based Polycrystalline Oxide Fibers, in Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313954.ch24

Author Information

  1. Center for Advanced Materials, The Pennsylvania State University, University Park, PA 16802

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1994

ISBN Information

Print ISBN: 9780470375174

Online ISBN: 9780470313954

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Keywords:

  • temperature;
  • mechanical;
  • environments;
  • polycqstalline;
  • information

Summary

Creep rupture tests were performed on single filaments of an alumina and an alumina-zirconia fiber (Fiber FP and PRD-166) at temperatures from 1150–1250°C and 1150–1300°C, respectively. Creep rates ranged from 5±10-8 sec−1 (50 MPa, 1150°C) to 3x10-4 sec−1 (85 MPa, 1300°C) for the alumina-zirconia fiber. Under similar conditions of applied stress and temperature, the creep rates of the alumina fiber were up to four times greater than those of the alumina-zirconia fiber. The apparent activation energies for creep of PRD-166 and Fiber FP were 757 and 588 kJ/mol, respectively, at an applied stress of 100 MPa. At 1200°C, the PRD-166 fiber crept measurably at stresses as low as 11 MPa and, at an applied stress of 100 MPa, was observed to creep at temperatures as low as 1050°C.