Study and Performance Evaluation of Thermal Barrier Coatings (TBCs) Using Infrared Thermography
C. Muralidhar, M. Venkata Reddy, K. Kumaran
Proc. National Seminar on Non-Destructive Evaluation
Abstract
Thermal barrier coatings (TBCs) are used in gas turbine engines to protect engine hot-section components in the harsh combustion environments, and extend component lifetimes. Infrared Thermography method has been selected for obtaining thermal images and studying the TBCs of Alumina, Zirconia and Alumina+Titanium oxide coated on the base plate of Titanium, by measuring the back wall temperatures. The results were analyzed in terms of different coating materials and of varying thicknesses. The salient features of Infrared Thermography for the measurement of temperature of TBCs have been brought out.
Keywords:Infrared thermography; Thermal barrier coatings; Back-wall temperatures
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