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Photothermal and Photo Acoustic Investigation of Zirconia Coating Delaminations

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Review of Progress in Quantitative Nondestructive Evaluation
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Abstract

Plasma sprayed ZrO2 coatings on ferritic steel with artificial adhesion defects were investigated using multiple photothermal and photoacoustic methods. The delaminations were produced by preventing the sand blasting of sections of the surface prior to applying the coating. Case study comparisons between an IR-camera/ flash lamp system, line scanning IR-imaging, pulse photoacoustic imaging, and thermal wave interferometry were performed. The methods offer a varying level of contrast for the defects depending on their relative sensitivity, resolution, and operating principle.

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© 1996 Plenum Press, New York

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Oksanen, M., Fenici, P., Salerno, A., Varis, J., Cernuschi, F. (1996). Photothermal and Photo Acoustic Investigation of Zirconia Coating Delaminations. In: Thompson, D.O., Chimenti, D.E. (eds) Review of Progress in Quantitative Nondestructive Evaluation. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0383-1_204

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  • DOI: https://doi.org/10.1007/978-1-4613-0383-1_204

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4613-8027-6

  • Online ISBN: 978-1-4613-0383-1

  • eBook Packages: Springer Book Archive

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