Elastic Modulus of EB-PVD Thermal Barrier Coating Film.
Details
Elastic moduli of a thermal barrier coating (TBC) film fabricated by an Electon-Beam Physical Vapour Deopsition (EB-PVD) process were measured by the Vibration Reed method. An effect of the rotating of the superalloy substrate during the deposition process was also investigated. It was shown that the elastic moduli of the EB-PVD coating were significantly lower than those fabricated by an atmospheric plsma spraying (APS) process. The Physical background on the low elastic moduli was discussed, employing the Eshelby's appraoch.
