Chapter 25. Creep Testing of Ceramics

  1. John B. Wachtman Jr.
  1. D. F. Carroll and
  2. S. M. Wiederhorn

Published Online: 28 MAR 2008

DOI: 10.1002/9780470310588.ch25

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10

How to Cite

Carroll, D. F. and Wiederhorn, S. M. (1989) Creep Testing of Ceramics, in A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310588.ch25

Author Information

  1. National Institute of Standards and Technology Gaithersburg, MD 20899

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780470374870

Online ISBN: 9780470310588

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Keywords:

  • porous cellular structures;
  • density varialions;
  • beam;
  • macrostructure;
  • structural components

Summary

An experimental technique for measuring tensile creep deformation in ceramic materials to temperatures of 1500°C is described. The technique uses simple flat dogbone-shaped specimens and a hot-grip design for the loading fixture, which provide good alignment at a minimum cost. Creep deformation is measured using laser extensometry to monitor the relative displacement of flags that are attached to the gauge section of the specimen. The accuracy of the displacement measurement is α2 μm. Because hot-grips are used in this experiment, the temperature of the gauge section was constant to α1°C. Data obtained on silicon carbide and silicon nitride composites are used to illustrate the operation of the equipment.