As-cast permanent magnet Sm-Co-Cu material with iron, produced by annealing and rapid quenching
US4116726A · kind A · utility
6Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1977 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Jun 27, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/055
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A permanent-magnet material containing samarium, cobalt, copper and iron, has the composition Sm(Co.sub.1-x-y Fe.sub.x Cu.sub.y).sub.z, wherein 0 < x < 0.2, 0.1 < y < 0.3 and 6.5 < z < 7.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.