| 简介 |
Disclosed is an R-T-B sintered magnet containing both a light rare earth element RL (at least one of Nd and Pr) and a heavy rare earth element RH (at least one of Dy and Tb), and having a main phase of Nd2Fe14B crystal. This magnet internally contains a first region wherein the concentration of the heavy rare earth element RH is zero or relatively low and a second region wherein the concentration of the heavy rare earth element RH is relatively high, and the first region and the second region are joined by sintering. |
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