Location

Seattle, WA

Start Date

1-1-1996 12:00 AM

Description

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.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

15B

Chapter

Chapter 6: Material Properties

Section

Coatings

Pages

1559-1563

DOI

10.1007/978-1-4613-0383-1_204

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Photothermal and Photo Acoustic Investigation of Zirconia Coating Delaminations

Seattle, WA

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.