硬磁体，即永磁体 永磁体：能够长期保持其磁性的磁体称永久磁体。如天然的磁石(磁铁矿)和人造磁钢（铁镍钴磁钢)等。永磁体是硬磁体，不易失磁，也不易被磁化。而作为导磁体和电磁铁的材料大都是软磁体。永磁体极性不会变化，而软磁体极性是随所加磁场极性而变的
讨论了合金成分配比、添加元素、制备及热处理工艺对磁体硬磁性能的影响。
The actions of the alloy composition, the addition of various elements and the quenching and annealing technical processes on the hard magnetic properties of magnets are discussed.
从磁性粒子的静磁场出发，分析计算了由软、硬磁性两相粒子随机混合的双相磁体中的静磁作用。
The dipolar interaction in a mixed two - phase magnet of soft and hard magnetic particles was analysed.
纳米复合永磁材料中添加微量元素，对改善纳米复合磁体的微结构、提高硬磁性能有着显著的功效。
Microelement in the nanostructured composite permanent magnet can reform the microstructure of the permanent magnet, and increase the hard magnetic character remarkably.
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