| 简介 |
A rare earth magnet comprising a main phase, a grain boundary phase present around the main phase, and an intermediate phase sandwiched between the main phase and the grain boundary phase, and having a total composition of the rare earth magnet represented by the formula : CepR1qT(100-p-q-r-s)BrM1s.(R21-xM2x)t R1 and R2 are a rare earth element except for Ce, T is one or more members selected from Fe, Ni, and Co, M1 is a minor element, and M2 is an alloy element that makes, the melting point of R21-xM2x to be lower than the melting point of R2 the concentration of Ce is higher in the main phase than in the intermediate phase, and the concentration of R2 is higher in the intermediate phase than in the main phase, and a production method thereof. |
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