Patent ID: 7655326

Claim:
A thermal barrier coating material, comprising a metal binding layer laminated on a base material and a ceramic layer laminated on the metal binding layer, the ceramic layer comprising partially stabilized ZrO 2 which is partially stabilized by additives of Dy 2 O 3 and Yb 2 O 3 , wherein the ceramic layer is porous and has a porosity which ranges from 10 to 30%, and wherein said ceramic layer is a film produced by thermal spraying of a ZrO 2 —Dy 2 O 3 —Yb 2 O 3 powder which has been obtained from a solid solution of a mixture of ZrO 2 , Dy 2 O 3 and Yb 2 O 3 powders, wherein each powder used to form said mixture has a specific surface area of at least 10 m 2 /g.