The magnetic properties of Nd_(12-x)Sm_xFe_(84)B_6 melt-spun ribbons(x=0-12) were investigated. The results show that the coercivity and saturation magnetization both decrease with the increase of Sm content under rapid quenching speed of30 m/s. The remanence ratio shows the tendency of falling firstly and rising and then falling with the increase of Sm content.Because the magnetocrystalline anisotropy of Sm_2Fe_(14)B is lower than that of Nd_2Fe_(14)B,the magnetocrystalline anisotropy of Nd_(12-x)Sm_xFe_(8...
1983年日本住友特殊金属公司研制出钕铁硼(Nd Fe B)稀土永磁材料,这一重大研究成果在永磁材料史上意义非凡[1-2]。烧结Nd Fe B磁体是目前综合磁性能最高的永磁材料,其具有较高的剩磁、矫顽力[3],其理论磁能积可达64 MGOe[4],试验室最高磁能积已达59 MGOe[5]。因为具有优异的综?