| 简介 |
A manufacturing method includes : manufacturing a sintered compact haying a composition of (R1)x(Rh)yTzBsMt; manufacturing a precursor by performing hot deformation processing on the sintered compact; and manufacturing a rare earth magnet by performing an aging treatment on the precursor in a temperature range of 450°C to 700°C. In this method, a main phase thereof is formed Of a (R1Rh)2T14B phase. A content of a (R1Rh)1.1T4B4 phase in a grain boundary phase thereof is more than 0 mass% and 50 mass% or less. R1 represents a light rare earth element. Rh represents a heavy rare earth element. T represents a transition metal. M represents at least one of Ga, A1, Cu, and Co. x, y, z, s, and t are percentages by mass of R1, Rh, T, B, and M. x, y, z, s, and t are expressed by the following expressions : 27≤x≤44, 0≤y≤10, z=100-x-y-s-t, 0.75≤s≤3.4, 0≤t≤3. |
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