Magnetic devices by selective reduction of oxides
US4379003A · kind A · utility
10Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1980 |
| Grant date | Apr 5, 1983 |
| Priority date | — |
| Expiry date | Jul 30, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F3/001
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Magnetic material is made by reducing an oxide powder compact having at least one nonreducible oxide species. A typical mixture of nickel, iron, and aluminum oxides selectively reduces to form a material having a typical permeability of 10 or more and high resistivity. Reduced eddy current losses occur in devices made from such material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.