HEAT SHIELD COATING MEMBER, PROCESS FOR PRODUCING THE SAME, HEAT SHIELD COAT MATERIAL, GAS TURBINE AND SINTERED BODY

摘要

There are provided a thermal barrier coating material and a thermal barrier coating member that can suppress spalling when used at a high temperature and have a high thermal barrier effect, a method for producing the same, a turbine member coated with a thermal barrier coating, and a gas turbine. The thermal barrier coating member comprises a heat resistant substrate 21, a bond coat layer 22 formed thereon, and a ceramic layer 24 formed further thereon, wherein the ceramic layer 24 comprises an oxide which consists of an oxide represented by the general formula A 2 Zr 2 O 7 doped with a predetermined amount of CaO or MgO and has 10 volume % or more of a pyrochlore type crystal structure, where A represents any of La, Nd, Sm, Gd, and Dy.