【摘要】 对于稀土永磁材料,定义了稀土元素与其他元素之间的加权平均电负性差P和加权平均原子赝势半径差Q;计算了1∶5型RE Co永磁材料、2∶17型RE Co永磁材料、Nd Fe B系列以及双相纳米晶复合材料等具有较好磁性能的稀土永磁材料的P和Q值点;计算结果表明,这些P和Q值点基本上分布在一段特定的区域内。更多还原

【Abstract】 The definition of weighted average differences P of electronegativities and Q of atomic pseudoradii between rare earth and other elements was introduced in respect of rare earth permanent magnet materials. The P,Q values of the materials with good magnetic properties were calculated. These rare earth permanent magnet materials include 1∶5 type RECo series, 2∶17 type RECo series, NdFeB series and nanocrystalline composite exchanging magnets. These P,Q values are found to be distributed into a specific range shown in this paper.更多还原