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Infrared Thermal-Wave Studies of Coated Surfaces

  • T. Ahmed
  • P. K. Kuo
  • L. D. Favro
  • H. J. Jin
  • P. Chen
  • R. L. Thomas
Chapter
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series

Abstract

In recent years plasma-sprayed coatings and polymer coatings have found wide application in manufacturing. Although the quality of the coatings improved over the years, there is a need for reliable NDE techniques to assess the quality and test the integrity of these coatings. Most existing techniques are not suitable for real-time applications. The introduction of synchronous thermal wave video imaging techniques using infrared cameras[1, 2] has made it possible to make images of thermal wave phenomena in almost real-time. In this work we describe the application of a pulsed heating and synchronous infrared thermal wave detection technique to image sub-surface defects in plasma-sprayed thermal barrier coatings and polymer coatings on metal substrates.

Keywords

Thermal Barrier Coating Thermal Wave Heating Pulse Storage Module Automotive Coating 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    See for example, W.N. Reynolds, Can. J. Phys. 64, 1150 (1986)Google Scholar
  2. 2.
    P.K. Kuo, Z.J. Feng, T. Ahmed, L.D. Favro, R.L. Thomas, and J. Hartikainen, in Photoacoustic and Photothermal Phenomena, P. Hess and J. Pelzl, Eds., Springer-Verlag, 415 (1988)CrossRefGoogle Scholar
  3. 3.
    P.K. Kuo, T. Ahmed, H.J. Jin, L.D. Favro, R.L. Thomas, J. Hartikainen and J.Jaarinen, Review of Progress in Quantitative Nondestructive Evaluation, D.O. Thompson and D.E. Chimenti, Eds., Plenum Press, Vol.8, 1305–1310, 1989Google Scholar
  4. 4.
    T. Ahmed, P.K. Kuo,H.J. Jin, L.D. Favro, R.L. Thomas, Review of Progress in Quantitative Nondestructive Evaluation, D.O. Thompson and D.E. Chimenti, Eds., Plenum Press, Vol.8, 1385–1392, 1989Google Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • T. Ahmed
    • 1
  • P. K. Kuo
    • 1
  • L. D. Favro
    • 1
  • H. J. Jin
    • 1
  • P. Chen
    • 1
  • R. L. Thomas
    • 1
  1. 1.Department of Physics and Institute for ManufacturingResearch Wayne State UniversityDetroitUSA

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