| 简介 |
[PROBLEM TO BE SOLVED]
To provide a rare earth magnet having excellent coercive force and a production method thereof.
[MEANS TO SOLVE THE PROBLEM]
A rare earth magnet, wherein the rare earth magnet comprises a magnetic phase containing Sm, Fe, and N, a Zn phase present around the magnetic phase, and an intermediate phase present between the magnetic phase and the Zn phase, wherein the intermediate phase contains Zn and the oxygen content of the intermediate phase is higher than the oxygen content of the Zn phase; and a method for producing a rare earth magnet, including mixing a magnetic raw material powder having an oxygen content of 1.0 mass% or less and an improving agent powder containing metallic Zn and/or a Zn alloy, and heat-treating the mixed powder. |
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