合金与化合物扩散改性烧结Nd-Fe-B磁体的研究进展  

Research progress on diffusion modification of sintered Nd-Fe-B magnets by alloys and compounds

作　　者：唐杰[1,2,3] 邓盛贤 杨梨容 王晓军[1,3] 刘畅[1,3] 李小伍[1,3] TANG Jie;DENG Sheng-xian;YANG Li-rong;WANG Xiao-jun;LIU Chang;LI Xiao-wu(College of Chemistry and Chemical Engineering,Mianyang Teachers’College,Mianyang 621000,China;Xici Magnetoelectricity Co.Ltd.,Mianyang 621000,China;Research Center of Laser Fusion,Chinese Academy of Engineering Physics,Mianyang 621900,China)

机构地区：[1]绵阳师范学院化学与化学工程学院,四川绵阳621000 [2]绵阳西磁磁电有限公司,四川绵阳621000 [3]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《化学研究与应用》2022年第6期1242-1250,共9页Chemical Research and Application

基　　金：四川省科技厅科技支撑计划项目(2013SZZ024)资助;四川省教育厅重大培育项目(18CZ0032)资助;绵阳师范学院科研启动项目(QD2013A01)资助。

摘　　要：烧结钕铁硼永磁材料自诞生以来,极大地提升了应用设备的性能,同时也拓展了许多新的应用领域。而近年来,新能源汽车、工业自动化、风力发电和人工智能机器人等领域的蓬勃兴起,对该磁体的矫顽力、热稳定性和耐蚀性等性能又提出了更高的要求。为此,生产研究人员多采用工艺优化、表面涂覆和合金化的方法,改善其实际应用性能。重稀土镝或铽的添加,表面镀锌、镍是较为常用的,而近年来也出现了采用合金与化合物扩散改性的研究,也可以达到比较好的效果。本文综述了这种方式改性的研究进展,概述了常用的化合物种类和这些化合物对于磁性能、耐蚀性能和热稳定性的提升情况,并对采用合金与化合物扩散改性烧结Nd-Fe-B合金的研究进行了展望。The sintered Nd-Fe-B magnets greatly promote performance of application apparatus and expand new application fields from its invention.But some apparatus,such as new energy automobile,industrial automation,wind power generation and artificial intelligence robot,et al,require its better properties which are coercive force,thermostability and corrosion resistance,etc.So,its application performance is improved by process optimization,surface coating and alloying.In these methods,addition of heavy rare earth dysprosium and terbium,zincing and nickeling on the magnetic surface are common methods.Moreover,recent diffusion modification by alloys and compounds obtains better effect.Therefore,research progress of this method and kinds of these alloys and compounds including those properties are summarized.Furthermore,this development direction is expected.

关 键 词：烧结ND-FE-B磁体 合金 化合物 磁性能 热稳定性 

分 类 号：O614[理学—无机化学]