Abstract
This paper describes a method for improving the bond strength of the interface between thermal barrier coatings and bond coatings. So far, in order to increase the bond strength and increase the formation of thermally grown oxide (TGO), Ce and Si were added to the bond coating material and a laser remelting technique for the bond coating were developed. As a result, the improved TBC had superior bond strength compared to conventional TBC. For the next step, to further improve coating properties such as oxidation or delamination resistance, a new coating system is suggested. In this study, high energy ball-milled powder was used for plasma spraying. Active nano particles were deposited on the surfaces of the powder. Using milled powder notably changed the thermodynamic properties. And as a result of high temperature exposure tests, it was show that the morphology of oxidation that formed at the interface was different compared to conventional coatings.
