Chapter 11. Characterization of Ceramic Coatings by Advanced Nondestructive Evaluation Methods

  1. John B. Wachtman Jr
  1. J. W. MacLachlan,
  2. L. C. Aamodt and
  3. J. C. Murphy

Published Online: 26 MAR 2008

DOI: 10.1002/9780470310502.ch11

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

MacLachlan, J. W., Aamodt, L. C. and Murphy, J. C. (1988) Characterization of Ceramic Coatings by Advanced Nondestructive Evaluation Methods, 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.ch11

Author Information

  1. The Johns Hopkins University Applied Physics Laboratory Laurel, MD 20707

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:

  • nondestructive;
  • characterization;
  • thermal wave;
  • theoretical;
  • NDE techniques

Summary

A number of new, noncontacting techniques for nondestructive evaluation using thermal wave methods have been recently developed. The application of these techniques to the problem of characterization of ceramic coatings is described with emphasis on the selection of the appropriate thermal wave technique for the geometry and material parameters of the system under investigation. Details of a time-resolved infrared technique are given along with a theoretical model for the time-dependent surface temperature. The roles of coating thickness and coating and substrate thermal properties are examined as factors determining the detect-ability of subsurface structure in coating systems. Finally, examples of application of these techniques to model and engineering coatings systems will be given.