Chapter 8. Phase Analysis of Plasma-Sprayed Zirconia-Yttria Coatings

  1. William Smothers
  1. N. Ravi Shankar,
  2. Chris C. Berndt and
  3. Herbert Herman

Published Online: 26 MAR 2008

DOI: 10.1002/9780470320167.ch8

Proceedings of the 7th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 4, Issue 9/10

Proceedings of the 7th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 4, Issue 9/10

How to Cite

Shankar, N. R., Berndt, C. C. and Herman, H. (1983) Phase Analysis of Plasma-Sprayed Zirconia-Yttria Coatings, in Proceedings of the 7th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 4, Issue 9/10 (ed W. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470320167.ch8

Author Information

  1. Department of Materials Science & Engineering State University of New York, Stony Brook, NY 11794

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1983

ISBN Information

Print ISBN: 9780470374047

Online ISBN: 9780470320167

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Keywords:

  • substrate;
  • tetragonal;
  • atmosphere;
  • conductivity;
  • resistance

Summary

Phase analysis of plasma-sprayed 8-wt%-yttria-stabilized zirconia (YSZ) thermal barrier coatings and powders was carried out by X-ray diffraction. Step scanning was used for increased peak resolution. Plasma spraying of the YSZ powder into water or onto a steel substrate to form a coating reduced the cubic and monoclinic phases with a simultaneous increase in the tetragonal phase. Heat treatment of the coating at 1150°Cfor 10 h in an Ar atmosphere Increased the amount of cubic and monoclinic phases. The implications of these transformations on coating performance and integrity are discussed.