NdFeB permanent magnet materials was fabricated by rapid solidification strip casting method followed by hydrogenation,and its microstructure and properties were characterized by OM,SEM and AMT-4 magnet property tester.The effects of tempering heat-treatment on microstructure and properties of NdFeB permanent magnet materials were investigated.The results show that the density,residual magnet,maximum magnetic energy product and coercivity increase with the increase of the first tempering temperature,but dec...
【基金】
江西省教育厅科技项目(GJJ12567,GJJ13656)
【更新日期】
2015-05-22
【分类号】
TG156.5
【正文快照】
随着近年来计算机、通信、电声以及微电机等技术的发展,对永磁材料的性能提出了越来越高的要求。第三代稀土永磁材料Nd Fe B性能的不断提高,成为了当前永磁材料科研工作者和生产厂家追求的方向[1-3]。速凝薄带加氢化工艺制备的Nd Fe B永磁体具有稀土使用量低,主晶相晶粒细小且?
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