| 摘要 |
<p>A rare earth sintered compact includes a main phase represented by (LR1xHRX)2T14A, where T is Fe with or without non-Fe transition metal element(s); A is boron with or without carbon; LR is a light rare earth element such as Nol; HR is a heavy rare earth element such as Dy; and O<X<1. The sintered compact is produced by preparing multiple types of rare earth alloy materials including respective main phases having different HR mole fractions, mixing the alloy materials so that the sintered compact will include a main phase having an average composition represented by (LR1XHRX)2T14A, thereby obtaining a mixed powder, and sintering the mixed powder. The alloy materials include first and second rare earth alloy materials represented by (LR1uHRu)2T14A (where 0≤u<x) and (LR1vHRV)2T14A (where x<v≤1) and including a rare earth element R (=LR+HR) at R1 and R2 (at%), respecti ely. Δ=|R1-R2| is about 20% or less of (R1+R2)/2.</p> |
