RARE EARTH FLUORIDE SPRAY POWDER AND RARE EARTH FLUORIDE-SPRAYED ARTICLE

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The present invention is characterized in that an aspect ratio of the outer shape of rare earth element fluoride particles is equal to or less than 2, the average particle diameter is equal to or more than 10 μ m and equal to or less than 100 μ m, and bulk density is equal to or more than 0.8 g/cm3 and equal to or less than 1.5 g/cm3, and relates to a rare earth element fluoride powder spraying material containing carbon at equal to or more than 0.1 wt% and equal to or less than 0.5 wt%. According to the present invention, a rare earth element fluoride powder spraying material suitable for atmospheric plasma spraying can be obtained. The rare earth element fluoride powder spraying member produced by using the rare earth element fluoride powder spraying material of the present invention is a member capable of realizing a long life spontaneously with little partial color change when used as an inner plasma member in halogen gas.COPYRIGHT KIPO 2018