Magnetic core, coil component and magnetic core manufacturing method
US10236110B2 · kind B2 · utility
1Cited by
8References
16Claims
0Family size
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Key dates
| Filing date | Mar 13, 2015 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Mar 13, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D6/002
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A magnetic core includes alloy phases 20 each made of Fe-based soft magnetic alloy grains including M1 (wherein M1 represents both elements of Al and Cr), Si, and R (wherein R represents at least one element selected from the group consisting of Y, Zr, Nb, La, Hf and Ta), and has a structure in which the alloy phases 20 are connected to each other through a grain boundary phase 30. In the grain boundary phase 30, an oxide region is produced. The oxide region includes Fe, M1, Si and R and further includes Al in a larger proportion by mass than the alloy phases 20.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.