| 发明名称 |
R-T-B BASED ALLOY STRIP, AND R-T-B BASED SINTERED MAGNET AND METHOD FOR PRODUCING SAME |
| 摘要 |
An R-T-B based alloy strip including columnar crystals of an R2T14B phase, wherein in a cross-section along the thickness direction, columnar crystals extend out in a radial fashion from the crystal nuclei, the R-T-B based alloy strip satisfying the following inequality (1), where D1 and D2 are, respectively, the average value for the lengths of the columnar crystals on one side and the average value for the lengths on the other side that is opposite the one side, in the direction perpendicular to the thickness direction of the cross-section.;0.9/1.1≦D2/D1≦1.1/0.9 (1) |
| 申请公布号 |
US2014308152(A1) |
申请公布日期 |
2014.10.16 |
| 申请号 |
US201214350438 |
申请日期 |
2012.10.11 |
| 申请人 |
TDK CORPORATION |
发明人 |
Tsubokura Taeko;Kato Eiji;Ishiyama Tamotsu;Jingu Nobuhiro;Ishizaka Chikara |
| 分类号 |
H01F1/053;H01F41/02 |
主分类号 |
H01F1/053 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An R-T-B based alloy strip comprising columnar crystals of an R2T14B phase,
wherein in a cross-section along the thickness direction, columnar crystals extend out in a radial fashion from the crystal nuclei, the R-T-B based alloy strip satisfying the following inequality (1), where D1 and D2 are, respectively, the average value for the lengths of the columnar crystals on one side and the average value for the lengths on the other side that is opposite the one side, in the direction perpendicular to the thickness direction of the cross-section.
0.9/1.1≦D2/D1≦1.1/0.9 (1) |
| 地址 |
Tokyo JP |
