抄録
The high performance thermal barrier coating (TBC), which shows the high reliability and durability, has been studied concerning especially on the high temperature stability properties of TBC materials. The Y2O3-ZrO2 coatings, which contained SrZrO3 and BaZrO3 as the second phase particles, were fabricated. It was clarified that uniform dispersion of BaZrO3 was effective in improving the high temperature stability of the Y2O3-ZrO2 TBC coatings.Burner heat type thermal cycle testing machine under axial loading was newly developed in order to evaluate the life of TBC. This test machine is able to load both mechanical stress and thermal stress independently. It is concluded that this testing machine is able to simulate the operation conditions, which is high temperature, thermal stress by temperature gradient, and mechanical stress like centrifugal force.
