Bonded magnet made from gas atomized powders of rare earth alloy
US5905424A · kind A · utility
11Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 4, 1997 |
| Grant date | May 18, 1999 |
| Priority date | — |
| Expiry date | Aug 4, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/0574
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Bonded magnets made from gas atomized powders of an rare earth alloy and having good hard magnetic characteristics are provided. The powders have an alloy composition comprising approximately 15 to 34 weight % of RE, 0.8 to 1.2 weight % of B, 0.5 to 4 weight % of TiC, balanced with at least one of Fe and Co, wherein RE is one or more rare earth elements selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Er, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.