Method for forming thermal barrier coatings by using atmospheric pressure thermal spary coating with suspension thermal spray coating

摘要

The present invention relates to a thermal barrier coating for high-temperature components constituting a gas turbine. The coating method for forming the thermal barrier coating layer includes: blasting the surface of the substrate (S100); forming a bond coating layer on the surface of the substrate by atmospheric pressure thermal spraying (S200); It consists of a step (S300) of forming a top coating layer using a suspension spray coating on the upper portion of the bond coating layer.