Sprayed article
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsYasushi Takai, Noriaki Hamaya
Life of this patent
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AssigneeShin-Etsu Chemical Co., Ltd.
InventorsYasushi Takai, Noriaki Hamaya
Estimating the term…
A sprayed article is disclosed including a substrate and a sprayed coating deposited thereon and containing a rare earth oxyfluoride as main phase. Provided is a slurry for suspension plasma spraying, which is a spray material used for suspension plasma spraying in an atmosphere including an oxygen-containing gas, contains 5-40 mass % of rare earth fluoride particles having a maximum particle diameter (D100) of 12 μm or less, and contains one or more types of solvent selected from among water and organic solvents. A rare earth acid fluoride-containing sprayed film, in which process shift and particle generation hardly occur, can be stably formed on a base material by carrying out suspension plasma spraying in an atmosphere including an oxygen-containing gas. A spraying member provided with this sprayed film exhibits excellent corrosion resistance to halogen-based gas plasma.
A sprayed article comprising a substrate and a sprayed coating deposited thereon and containing, as main phase, a crystal phase of at least one rare earth oxyfluoride selected from the group consisting of ResO4F7 and Re6O5F8 wherein Re is a rare earth element, wherein the sprayed coating has a Vickers hardness of 390 or more.
Dependencies are inferred from the claim text.