Magnetic glassy metal alloy sheets with improved soft magnetic properties
US4268325A · kind A · utility
32Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1979 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Jan 22, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/153
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A magnetic glassy metal alloy sheet is annealed at elevated temperature in a first magnetic field oriented in a direction substantially normal to the plane of the sheet. A second anneal may be performed in a weaker magnetic field in a direction substantially normal to the first field to minimize AC hysteresis losses. The annealed magnetic glassy metal alloy sheet has improved soft magnetic properties such as low hysteresis losses and may be used for transformer cores and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.