Chapter 44. TZP-Ceramics in Humid Conditions at 150°C

  1. John B. Wachtman Jr
  1. T. T. Lepistö,
  2. P. V. Lintula and
  3. T. A. Mäntvlä

Published Online: 26 MAR 2008

DOI: 10.1002/9780470310502.ch44

12th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 9/10

12th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 9/10

How to Cite

Lepistö, T. T., Lintula, P. V. and Mäntvlä, T. A. (1988) TZP-Ceramics in Humid Conditions at 150°C, in 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310502.ch44

Author Information

  1. Tampere University of Technology Institute of Materials Science Tampere, Finland

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1988

ISBN Information

Print ISBN: 9780470374818

Online ISBN: 9780470310502

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Keywords:

  • mechanical;
  • thermal;
  • TZP;
  • conductivity;
  • TZP-ceramics

Summary

In spite of their good mechanical and thermal properties, TZP ceramics lack their structural stability in humid atmospheres at low temperatures. In this work, three commercial TZP ceramics were exposed to water vapor at 150°C for up to 1000 h to study the effect of the exposure on microstructure and mechanical properties. It was found that all of the tested materials were unstable in the test conditions. The changes in the structure and mechanical properties caused by the exposure couldn't be explained by grain size and yttria content alone so that more detailed information on the manufacturing procedure is needed to evaluate the stability of present day commercial TZP ceramics in various environments.