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US 12,770,782 B2Granted
Method for manufacturing multiphase magnet and multiphase magnet manufactured thereby
AssigneeKorea Institute of Materials Science
InventorsJung Goo Lee, Hee Ryoung Cha, Ga Yeong Kim, Young Kuk Kim, Youn Kyoung Baek
Life of this patent
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Abstract
The present disclosure provides a method for manufacturing a multi-main-phase structure magnet having excellent coercive force and a multi-main-phase structure magnet manufactured therefrom.
Claims16
A method for manufacturing a multi-main-phase structure magnet, the method comprising steps of:
- preparing a mixed powder by mixing a first powder having a composition of Re1—Fe—B and a second powder having a composition of Re2—Fe—B;
- and
- manufacturing the mixed powder into an anisotropic bulk magnet by performing anisotropic bulking of the mixed powder,
- wherein:
- Re1 includes Nd,
- Re2 includes Nd and Ce,
- combined mole fractions of Nd and Ce in Re2 are equal to a mole fraction of Nd in Re1, and
- the rare earth metals included in Re1 are different from the rare earth metals included in Re2 in one or more of a type and a content of the metals.
5 more elements
Dependencies are inferred from the claim text.