To address drawbacks with conventional destructive adhesion tests, two advanced nondestructive methods were developed to characterize the acoustic response of coating-substrate bonding. These new tests, immersion ultrasonic testing and laser shock adhesion testing, are discussed in this contribution. The paper describes the test process and results as compared to traditional destructive testing. The advantages and drawbacks of the techniques are addressed.

adhesion thresholds, immersion ultrasonic testing, laser shock adhesion testing, plasma spraying
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Copyright © 2004 ASM International. All rights reserved.
2004
ASM International
Topics
Thermal spray coatings Nondestructive testing
Issue Section:
Characterization Methods for Coating Properties
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