| abstract |
The present invention provides a thermal barrier coating material, a thermal barrier coating member, a method for manufacturing the thermal barrier coating member, and a turbine member coated with the thermal barrier coating material that can suppress peeling at high temperatures and have a high thermal shielding effect. A thermal barrier coating member comprising a heat resistant substrate 21, a bond coat layer 22, and a ceramic layer 24 formed on the bond coat layer, wherein the ceramic layer 24 has the general formula A The oxide represented by 2 Zr 2 O 7 contains an oxide formed by doping a predetermined amount of at least one of CaO and MgO, and has a pyrochlore crystal structure of 10% by volume or more. Alternatively, the ceramic layer 24 includes an oxide represented by the general formula A ′ 1 B 1 Zr 2 O 7 or the general formula A ″ 2 Ce 2 O 7 , where A is La, Nd, Sm, Gd, or D ′ represents any one of them, A ′ and B each represent one of La, Nd, Sm, Gd, Dy, Ce or Yb which are different from each other, and A ″ represents one of La, Sm or Yb. [Selection] Figure 1 |