Published November 25, 1993
| public
Journal Article
X-ray residual stress analysis of a ceramic thermal barrier coating undergoing thermal cycling
- Creators
- Jordan, D. W.
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Faber, K. T.
Chicago
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Abstract
The residual stress of a ZrO_2-8%Y_2O_3 thermal barrier coating was determined as a function of thermal cycling. Samples were thermally cycled from 400°C to 1000°C in air. After a few cycles the samples exhibited a value of compressive residual stress consistent with that determined by considering the thermal expansion coefficients of the coating and substrate. Stress relief occurs in the ZrO_2-Y_2O_3 coating, increasing in both frequency and magnitude with increasing number of thermal cycles. This behavior is explained in terms of a model of failure of coatings in compression.
Additional Information
Copyright © 1993 Elsevier. (Received February 1, 1993; accepted May 14, 1993). The authors gratefully acknowledge the support of the National Science Foundation under Grant No. HRD-9023629. All specimens for this work were provided by the General Electric Company, Aircraft Engine Business Group, Evendale, OH.Additional details
- Eprint ID
- 49433
- Resolver ID
- CaltechAUTHORS:20140908-181328570
- NSF
- HRD-9023629
- Created
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2014-09-10Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field