| 申请日期 | 2025-08-16 | 申请号 | EP16163356 |
| 公开（公告）号 | EP3076408A1 | 公开（公告）日 | 2016-10-05 |
| 公开国别 | EP | 申请人省市代码 | 全国 |
| 申请人 | Shin Etsu Chemical Co Ltd | ||
| 简介 | The invention provides an R-Fe-B sintered magnet consisting essentially of 12-17 at% of R, 0.1-3 at% of M1, 0.05-0.5 at% of M2, 4.8+2*m to 5.9+2*m at% of B, and the balance of Fe, containing R2(Fe, (Co))14B intermetallic compound as a main phase, and having a core/shell structure that the main phase is covered with a HR-rich layer and a (R, HR)-Fe(Co)-M1 phase wherein HR is Tb, Dy or Ho. The sintered magnet exhibits a coercivity ≥ 10 kOe despite a low content of Dy, Tb, and Ho. | ||
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