ENVIRONMENT RESISTANT COATING MEMBER

文件类型：PDF文档
文件大小：1286K
This environment resistant coating member 100 includes a SiC long fiber reinforced ceramic substrate 1 and an environment resistant coating layer 2 provided on a surface of the substrate 1. The environment resistant coating layer 2 has : a SiAlON bonded layer 21 laminated on the SiC long fiber reinforced ceramic substrate 1; a mullite layer 22 laminated on the SiAlON bonded layer 21; a reaction suppression layer 23 laminated on the mullite layer 22; and a graded layer 24 which has a composition that transitions from rare earth disilicate laminated on the reaction suppression layer 23 to rare earth monosilicate. The reaction suppression layer 23 is at least one layer among an alumina layer, a garnet layer, or a rare earth (mono)silicate layer, and if the reaction suppression layer 23 includes a plurality of layers, the layers are laminated in the above order from the mullite layer 22 toward the graded layer 24.