Rare-earth oxide thermal spray coated articles and powders for thermal spraying
AssigneeShin-Etsu Chemical Co., Ltd.
InventorTakao Maeda
Life of this patent
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Abstract
A rare-earth oxide thermal spray coated article comprising a substrate and a coating layer formed by thermally spraying a rare-earth oxide thermal spraying powder onto a surface of the substrate, said coating layer being of a gray or black color having, in the L*a*b* color space, an L* value of up to 50, an a value of −3.0 to +3.0, and a b* value of −3.0 to +3.0.
Claims7
A rare-earth oxide thermal spray coated article comprising:
- a substrate and
- a coating layer formed by thermally spraying a rare-earth oxide thermal spraying powder onto a surface of the substrate,
- said coating layer being of a gray or black color having, in the L*a*b* color space, an L* value of up to 50, an a* value of −3.0 to +3.0, and a b* value of −3.0 to +3.0 and containing carbon or molybdenum.
A rare-earth oxide thermal spray coated article comprising:
- a substrate and
- a coating layer formed by thermally spraying a rare-earth oxide thermal spraying powder onto a surface of the substrate,
- said coating layer being of a gray or black color having, in the L*a*b* color space, an L* value of up to 50, an a value of −3.0 to +3.0, and a b* value of −3.0 to +3.0
- wherein the coating layer has a carbon content of 0.1 to 2% by weight or a titanium or molybdenum content of 1 to 1000 ppm.
A rare-earth oxide powder for thermal spraying, which powder is of a gray or black color having, in the L*a*b* color space, an L* value of up to 50, an a* value of −3.0 to +3.0 and a b* value of −3.0 to +3.0 and containing carbon or molybdenum.
A The rare-earth oxide powder for thermal spraying, which powder is of a gray or black color having, in the L*a*b* color space, an L* value of up to 50, an a* value of −3.0 to +3.0 and a b* value of −3.0 to +3.0,
- wherein the powder has a carbon content of 0.1 to 2% by weight or a titanium or molybdenum content of 1 to 1000 ppm.
A rare-earth oxide powder for thermal spraying, which powder is of a gray or black color having, in the L*a*b* color space, an L* value of up to 50, an a* value of −3.0 to +3.0 and a b* value of −3.0 to +3.0,
- wherein the powder has a carbon content of 0.1 to 2% by weight.
A rare-earth oxide powder for thermal spraying, which powder is of a gray or black color having, in the L*a*b* color space, an L* value of up to 50, an a value of −3.0 to +3.0 and a b* value of −3.0 to +3.0,
- wherein the powder has a titanium content of 1 to 1000 ppm.
A rare-earth oxide powder for thermal spraying, which powder is of a gray or black color having, in the L*a*b* color space, an L* value of up to 50, an a* value of −3.0 to +3.0 and a b* value of −3.0 to +3.0,
- wherein the powder has a molybdenum content of 1 to 1000 ppm.
Dependencies are inferred from the claim text.