Non-uniaxial permanent magnet material
US5403408A · kind A · utility
7Cited by
20References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1992 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Oct 19, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/058
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A permanent magnet material having the formula, in atomic %: EQU TM.sub.(84.3.-w-z) RE.sub.(3.0+w) B.sub.(12.7+z), wherein -3.3.ltoreq.z<3.3 and -2.0.ltoreq.w<2.0; or EQU TM.sub.(89.8-x-y) RE.sub.(3.5+y) B.sub.(6.7+x), wherein -2.5.ltoreq.y<2.5 and -2.7.ltoreq.x.ltoreq.2.7; or EQU TM.sub.(96.5-q-r) RE.sub.(1+q) B.sub.(2.5+r), wherein -1.5.ltoreq.r.ltoreq.1.5 and 0.ltoreq.q<6.5-r; and wherein TM is a transition metal, RE is a rare earth metal, and B is boron or a combination of boron and carbon. The permanent magnet materials include at least weight percent non-uniaxial material and possess a coercivity of at least 1,000 Oersteds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.