Method of producing thermal spray coating using the yittrium powder and the yittrium coating produced by the mothod
AssigneeKomico Ltd.
InventorsDae Sung Kim, Seong Sik Bang, Jae Im Jeong, Dong Hun Jeong
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Abstract
Proposed is a method of producing an yttrium-based thermal spray coating. The method includes forming a coating on a substrate by atmospheric plasma spraying of an yttrium-based granular powder including at least one yttrium compound powder selected from the group consisting of Y2O3, YOF, YF3, Y4Al2O9, Y3Al5O12, and YAlO3, and a silica (SiO2) powder. The yttrium-based granular powder includes less than 10 w % of a Y—Si—O mesophase. Then yttrium-based thermal spray coating can exhibit low porosity, high density, and excellent plasma resistance.
Claims11
A method of producing an yttrium-based thermal spray coating, the method comprising
- forming a coating on a substrate by atmospheric plasma spraying of an yttrium-based granular powder comprising at least one yttrium compound powder selected from the group consisting of Y2O3, YOF, YF3, Y4Al2O9, Y3Al5O12, and YAlO3, and a silica (SiO2) powder,
- wherein the yttrium-based granular powder comprises greater than 0 wt % and less than 10 w % of a Y—Si—O mesophase, and
- the coating has a thickness of 100 μm to 250 μm.
Dependencies are inferred from the claim text.