| 简介 |
A sintered magnet of a preferred embodiment is formed from 29.5 to 33.0 mass% of R (where R is rare earth elements that always include either Nd or Pr), 0.7 to 0.95 mass% of B, 0.03 to 0.6 mass% of Al, 0.01 to 1.5 mass% of Cu, 3.0 mass% or less (but not 0 mass%) of Co, 0.1 to 1.0 mass% of Ga, 0.05 to 0.3 mass% of C, 0.03 to 0.4 mass% of O, and Fe and other elements as the balance; has a composition wherein the heavy rare earth element content is a total of 1.0 mass% or less; and when the number of atoms of Nd, Pr, B, C, and Ga is [Nd], [Pr], [B], [C], and [Ga], respectively, the following relations are satisfied : 0.29 < [B]/([Nd] + [Pr]) < 0.40 and 0.07 < ([Ga] + [C])/[B] < 0.60. |
客服热线：
手机版
二维码
