Rare earth-transition metal alloy articles
US7410705B2 · kind B2 · utility
1Cited by
4References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 26, 2003 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Nov 23, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A phosphate bonded ceramic is used to provide a protective coating on a rare earth-transition metal (RE-TM) alloy substrate, conferring degradation resistance to the alloy by being oxidation resistant and acting as a diffusion barrier, thereby minimising/preventing oxygen diffusion and elemental depletion. The alloy substrate may, for example, be a permanent magnetic alloy component and may be used in aerospace applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.