"Composition for permanent magnets of the family ""rare earths-transition metals"" and process for producing such a magnet"
US4002508A · kind A · utility
4Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1975 |
| Grant date | Jan 11, 1977 |
| Priority date | — |
| Expiry date | Aug 14, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/055
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a composition for permanent magnets of the family "rare earths-transition metals" wherein in a structure of the SmCo.sub.5 type, 2 to 15% of the cobalt atoms are replaced by nickel. This can be applied to the production by the sintered powder technique of permanent magnets having a particularly high intrinsic coercivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.