Category: Transient Plane Source
Author(s): J. Wigren, N. Markocsan, P. Nylen, X.-H. Li
Keywords: Coatings, Laser Flash Technique, Laser Flash Technique (LFT), LFT, Plasma Spraying, Plasma Torch Power Input, porosity, TBC, Thermal Barrier Coatings, Thermal Barrier Coatings (TBC), Thermal Conductivity, TPS Technique, Transient Plane Source, Transient plane source (TPS) method
Abstract: Thermal barrier coatings (TBC) are plasma sprayed onto gas turbine parts in order to improve combustion efficiency and component life time. Two TBC are looked at in this report: yttria partially stabilized zirconia (YPSZ) and dysprosia partially stabilized zirconia (DyPSZ). Both the TPS and laser flash techniques were used to measure the thermal conductivity of the coatings and the results were compared. In addition the effect of barrier microstructure on thermal conductivity was investigated.
Reference: Journal of Thermal Spray Technology, 16, 4 (2007) 498-505