Chapter 15. A Model for Residual Stress Evolution in Air-Plasma-Sprayed Zirconia Thermal Barrier Coatings

  1. Todd Jessen and
  2. Ersan Ustundag
  1. B. G. Nair,
  2. J. P. Singh and
  3. M. Grimsditch

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294628.ch15

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3

How to Cite

Nair, B. G., Singh, J. P. and Grimsditch, M. (2000) A Model for Residual Stress Evolution in Air-Plasma-Sprayed Zirconia Thermal Barrier Coatings, in 24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3 (eds T. Jessen and E. Ustundag), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294628.ch15

Author Information

  1. Argonne National Laboratory 9700 South Cass Avenue Argonne, IL 60439

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2000

ISBN Information

Print ISBN: 9780470375686

Online ISBN: 9780470294628

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Keywords:

  • ceramic fibers;
  • stress imaging;
  • nonstructure imaging;
  • thermal barrier coatings;
  • raman microspectrometry

Summary

Ruby fluorescence spectroscopy indicates that residual stress in air-plasma-sprayed zirconia thermal barrier coatings is a function of the local interface geometry. The stress profile of a simulated rough interface characterized by “peaks” and “valleys” was modeled with a finite-element approach that accounted for thermal mismatch, oxide scale growth, and top coat sintering. Dependence of the stress profile on interface geometry and microstructure was investigated, and the results were compared with measured stresses.