Magnetic core comprised of low-retentivity amorphous alloy
US4265684A · kind A · utility
40Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 16, 1979 |
| Grant date | May 5, 1981 |
| Priority date | — |
| Expiry date | Jul 16, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49034
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An amorphous alloy core is converted into a crystalline state at least at one zone along the core body and such zone extends at least over a portion of the core cross-section at such zone. The zone converted into the crystalline state functions as an air gap of prior art crystalline low-retentivity alloy cores, because the permeability in the crystalline state is significantly lower than in the amorphous state. Magnetic cores formed in accordance with the principles of the invention are suitable in applications wherever a sheared hysteresis loop is required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.