THERMAL CONDUCTIVITY MEASUREMENT FOR THERMAL BARRIER COATINGS BASED ON ONE- AND TWO-SIDED THERMAL IMAGING METHODS
- Nuclear Engineering Division, Argonne National Laboratory, Argonne, IL 60439 (United States)
The thermal conductivity of thermal barrier coatings (TBCs) is normally measured using laser flash method, which is a two-sided thermal imaging method. Because laser flash cannot be used for TBCs applied on real components, one-sided thermal imaging method is being developed for potential nondestructive inspection and monitoring of TBC conditions during service. One such method is a multilayer thermal modeling method developed at Argonne National Laboratory. In this study, these methods are reviewed and their capability for conductivity measurement for two-layer TBC material is analyzed based on theoretical analyses. In particular, it is identified that only one TBC property, the conductivity, can be determined by two-sided methods, while two TBC properties, conductivity and heat capacity, can be determined by one-sided method.
- OSTI ID:
- 21371032
- Journal Information:
- AIP Conference Proceedings, Vol. 1211, Issue 1; Conference: Review of progress in quantitative nondestructive evaluation, Kingston, RI (United States), 26-31 Jul 2009; Other Information: DOI: 10.1063/1.3362429; (c) 2010 American Institute of Physics; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CERAMICS
COATINGS
LASER RADIATION
LAYERS
NONDESTRUCTIVE TESTING
SPECIFIC HEAT
THERMAL BARRIERS
THERMAL CONDUCTIVITY
ELECTROMAGNETIC RADIATION
MATERIALS TESTING
PHYSICAL PROPERTIES
RADIATIONS
TESTING
THERMODYNAMIC PROPERTIES