| 发明名称 |
RARE EARTH BASED MAGNET |
| 摘要 |
The present invention provides a rare earth based magnet including R2T14B main-phase crystal grains, and two-grain boundary phases between adjacent two R2T14B main-phase crystal grains, the two-grain boundary phases are controlled such that the thickness thereof is 5 nm or more and 500 nm or less, and it is composed of a phase with a magnetism different from that of a ferromagnet. |
| 申请公布号 |
US2014290803(A1) |
申请公布日期 |
2014.10.02 |
| 申请号 |
US201414228808 |
申请日期 |
2014.03.28 |
| 申请人 |
TDK CORPORATION |
发明人 |
KATO Eiji;FUJIKAWA Yoshinori;TSUBOKURA Taeko;ISHIZAKA Chikara;SATO Katsuo |
| 分类号 |
H01F1/153;H01F1/053 |
主分类号 |
H01F1/153 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A rare earth based magnet, comprising:
R2T14B main-phase crystal grains and two-grain boundary phases between adjacent two R2T14B main-phase crystal grains, wherein the thickness of said two-grain boundary phases is 5 nm or more and 500 nm or less and said two-grain boundary phases is composed of a phase with a magnetism different from that of a ferromagnet. |
| 地址 |
Tokyo JP |
