Manufacturing method of heat shield coating, turbine member, gas turbine and heat shield coating

摘要

PROBLEM TO BE SOLVED: To improve the durability of a heat shield coating. A heat-shielding coating according to at least one embodiment of the present invention is a heat-shielding coating for protecting a base material from heat, and is provided on the base material side and contains a first layer of ceramics. The first layer is provided on the opposite side of the first layer from the base material and includes a second layer containing the second ceramics, and the first layer has a higher porosity than the second layer. The second layer has a porosity of 0.1% or more and 5.0% or less, and a maximum pore diameter of 20 μm or less. [Selection diagram] Fig. 1