Nondestructive evaluation of plasma-sprayed thermal barrier coatings
Journal Article
·
· Journal of Materials Engineering and Performance
- Alfred Univ., NY (United States). New York State Coll. of Ceramics
Acoustic emission has been used as a nondestructive evaluation technique to examine the thermal shock response of thermal barrier coatings. In this study, samples of partially stabilized zirconia powder were sprayed and acoustic emission (AE) data were taken in a series of thermal shock tests in an effort to correlate AE with a given failure mechanism. Microstructural evidence was examined using parallel beam x-ray diffraction and optical microscopy. The AE data are discussed in terms of cumulative amplitude distributions and the use of this technique to characterize fracture events.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 554081
- Journal Information:
- Journal of Materials Engineering and Performance, Vol. 6, Issue 5; Other Information: PBD: Oct 1997
- Country of Publication:
- United States
- Language:
- English
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