| 申请日期 | 2025-06-26 | 申请号 | JP2015530970 |
| 公开（公告）号 | JP6330813B2 | 公开（公告）日 | 2018-05-30 |
| 公开国别 | JP | 申请人省市代码 | 全国 |
| 申请人 | TDK株式会社 | ||
| 简介 | The present invention provides an R-T-B based sintered magnet that inhibits the demagnetization rate at high temperature even when less or no heavy rare earth elements such as Dy, Tb and the like are used. The R-T-B based sintered magnet includes R2T14B crystal grains and two-grain boundary parts between the R2T14B crystal grains. Two-grain boundary parts formed by R—Co—Cu-M-Fe phase exist, and M is at least one selected from the group consisting of Ga, Si, Sn, Ge and Bi. | ||
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