| abstract |
PROBLEM TO BE SOLVED: To provide a high-performance permanent magnet, a permanent magnet motor and a generator using the same, by developing a coercive force while increasing magnetization in a heat-resistant Sm-Co magnet. the permanent magnet, the composition formula: (Sm 1-x R x ) 100-z (Fe p M q Cu r Co 1-p-q-r) z (R is at least one element selected Nd, from Pr , M is one or more elements selected from Ti, Zr, and Hf, 0.05 ≦ x <0.5, 7 ≦ z ≦ 9, 0.22 ≦ p ≦ 0.45, 0.005 ≦ q ≦ 0 .05, 0.01 ≦ r ≦ 0.1), a phase having a Th 2 Zn 17 type structure as a main phase, and from the (113) plane of the Th 2 Zn 17 type structure by powder X-ray diffraction The diffraction peak intensity is I (113) and the diffraction peak intensity from the (300) plane is I (300). Rutoki, characterized by satisfying the relation of 0.9 ≦ I (113) / I (300) ≦ 1.7. [Selection] Figure 1 |