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US 2013/0154424 A1Published application
Alloy material for r-t-b-based rare earth permanent magnet, method for producing r-t-b-based rare earth permanent magnet, and motor
AssigneeShowa Denko K.K.
InventorsKenichiro Nakajima, Takashi Yamazaki
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Abstract
An alloy material for an R-T-B-based rare earth permanent magnet, including (i) an R-T-B-based alloy composed of R being two or more members selected from rare earth elements, T being a transition metal that essentially contains Fe, B and unavoidable impurities, and in which the Dy content is more than 10% by mass and less than 31% by mass, and (ii) a metal powder. Also disclosed is a method for producing an R-T-B-based rare earth permanent magnet and a motor provided with the R-T-B-based rare earth permanent magnet.
Claims6
An alloy material for an R-T-B-based rare earth permanent magnet composed of:
- R being two or more members selected from rare earth elements;
- T being a transition metal that essentially contains Fe;
- B;
- and
- unavoidable impurities, and
- comprising:
- an R-T-B-based alloy in which the Dy content is more than 10% by mass and less than 31% by mass;
- and a metal powder.
5 more elements
Dependencies are inferred from the claim text.