Film of yttria-alumina complex oxide, a method of producing the same, a sprayed film, a corrosion resistant member, and a member effective for reducing particle generation
US6641941B2 · kind B2 · utility
45Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Jul 17, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/26
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention provides a film of an yttria-alumina complex oxide having a high peel strength with respect to a substrate. A mixture of powdery yttria and alumina materials is sprayed on a substrate to form a sprayed yttria-alumina complex oxide film. Preferably, the powdery yttria material has a 50 percent mean particle diameter in a range of 0.1 &mgr;m to 100 &mgr;m, and the powdery alumina material has a 50 percent mean particle diameter in a range of 0.1 &mgr;m to 100 &mgr;m. Preferably, the yttria-alumina complex oxide contains at least garnet phase, and may further contain perovskite phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.