Magnetic material and manufacturing method thereof
US11996219B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2021 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Nov 4, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F41/0253
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetic material according to the present disclosure includes a main phase having an R2T14B type crystal structure (R is a rare earth element and T is a transition metal element). The main phase has a composition represented by ((Nd, Pr)(1-x-y)LaxR1y))2((Fe(1-z-w)(Co, Ni)zMw))14B (where, R1 is a rare earth element other than Nd, Pr, and La, M is an element other than Fe, Co, Ni, and a rare earth element, and the like, and 0.25≤x≤1.00, 0≤y≤0.10, 0.15≤z≤0.40, and 0≤w≤0.1 are satisfied). A manufacturing method of the magnetic material according to the present disclosure includes melting a raw material containing the elements constituting the main phase and solidifying the melted raw material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.