Fine grained anisotropic powder from melt-spun ribbons
US5314548A · kind A · utility
7Cited by
6References
6Claims
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Assignee
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Key dates
| Filing date | Jun 22, 1992 |
| Grant date | May 24, 1994 |
| Priority date | — |
| Expiry date | Jun 22, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/0573
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method is disclosed for producing a rapidly solidified, fine grained, magnetically anisotropic powder of the RE-Fe-B type. The rapidly solidified material is optimally quenched or slightly overquenched and is subjected to a hydrogen absorption-hydrogen desorption process that produces a fine grained material containing the essential magnetic phase RE.sub.2 TM.sub.14 B and an intergranular phase and is magnetically anisotropic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.