| 简介 |
Provided are : a permanent magnet that has a large magnetic coercive force among the permanent magnets that contain Ce as a substitutional element for Nd; and a rotating machine equipped with said permanent magnet. This permanent magnet 10 is provided with : a plurality of main phase particles 11 each comprising a rare-earth element R, a transition metal element T, and boron; and a grain boundary phase 9 that is situated between the main phase particles 11, wherein the rare-earth element R includes at least neodymium and cerium, and the transition metal element T includes at least iron, the contained amount of copper in the permanent magnet 10 is 0.1-2 at%, the grain boundary phase 9 includes an R-T phase 3 comprising an intermetallic compound of the rare-earth element R and the transition metal element T, and, when the total contained amount of the rare-earth element R in the R-T phase 3 is [R]L at% and the contained amount of cerium in the R-T phase 3 is [Ce]L at%, 100×[Ce]L/[R]L equals to 75-100. |
客服热线：
手机版
二维码
