Thermal spray powder and film that contain rare-earth element, and member provided with film
US9528176B2 · kind B2 · utility
4Cited by
4References
9Claims
0Family size
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Key dates
| Filing date | Sep 26, 2012 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Sep 26, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C4/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A thermal spray powder of the present invention contains a rare earth element and a diluent element that is not a rare earth element or oxygen, which is at least one element selected, for example, from zinc, silicon, boron, phosphorus, titanium, calcium, strontium, and magnesium. A sintered body of a single oxide of the diluent element has an erosion rate under specific etching conditions that is no less than 5 times the erosion rate of an yttrium oxide sintered body under the same etching conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.