Hot-pressed and deformed magnet comprising nonmagnetic alloy and method for manufacturing same

An R-TM-B hot-pressed and deformed magnet (here, R represents a rare earth metal selected from the group consisting of Nd, Dy, Pr, Tb, Ho, Sm, Sc, Y, La, Ce, Pm, Eu, Gd, Er, Tm, Yb, Lu, and a combination thereof, and TM represents a transition metal) of the present invention comprises flat type anisotropic magnetized crystal grains and a nonmagnetic alloy distributed in a boundary surface between the crystal grains, and thus the magnet of the present invention has an excellent magnetic shielding effect as compared with an existing permanent magnet since the crystal grains can be completely enclosed in the nonmagnetic alloy, so that a hot-pressed and deformed magnet with enhanced coercive force can be manufactured through a more economical process. 本发明的R-TM-B热压变形的磁体(这里，R表示选自由Nd、Dy、Pr、Tb、Ho、Sm、Sc、Y、La、Ce、Pm、Eu、Gd、Er、Tm、Yb、Lu及其组合组成的组中的稀土金属，并且TM表示过渡金属)包含平坦型各向异性的磁化晶粒和分布于晶粒之间的边界界面中的非磁性合金，因此，本发明的磁体与现有永磁体相比具有优异的磁屏蔽效果，因为晶粒可以被完全包围在非磁性合金中，使得可以通过更经济的处理来制造具有增强矫顽力的热压变形的磁体。