Patent ID: 8053058
Filing Date: 2011-11-08
Classification: C23C,Y10T

Abstract:
1. A spray coated member having resistance to plasma erosion, comprising a ceramic spray coated portion covering a surface of a substrate wherein an outermost surface layer portion of the ceramic spray coated portion is an electron beam irradiated layer, wherein only sharp-end convex portions located above a center line of a roughness curve in a height direction of a surface of the ceramic spray coated portion are changed into rounded convex portions by fusion-solidification accompanied with an irradiation of the electron beam; the ceramic spray coated portion has a surface form that a skewness value (Rsk) of a roughness curve in the height direction according to JIS B0601 is greater than 0; and the ceramic spray coated portion has a thickness of 50-2000 μm, wherein the ceramic spray coated portion is an oxide ceramic spray coating made of Al