典型文献
Coercivity enhancement of Ce-containing hot-deformed magnets by grain boundary diffusion of DyF3
文献摘要：
The samples with full density were prepared by hot pressing the the melt-spun powders mixed with DyF3 powders of different mass fractions followed by hot-deformation process.The magnetic properties and temperature dependence of coercivity were obtained by BH tracer and VSM,respectively.The microstructure were analyzed by scanning electron microscopy (SEM) and transmission electron mi-croscopy (TEM).The coercivity of Ce-containing hot-deformed magnets is increased from 1.41 to 1.95 T by grain boundary diffusion of 3 wt％ DyF3,and is further enhanced to 2.05 T after annealing treatment.The thermal stability of coercivity and remanence is improved.The annealing condition in this work crucially plays a role in thickening the grain boundary phase.Microstructure analysis reveals that the continuous and thick grain boundary phase formed after DyF3 diffusion can weaken the magnetic coupling between grains,and suppress the platelet shaped grain size and the aspect ratio.The Dy-containing shell structure formed by the partial diffusion of Dy into the main phase can increase the magnetic anisotropy field,which is the main reason for the coercivity improvement.After optimizing the structure by DyF3 diffusion,the "dendritic-like" reverse domain is transformed into the "dot scattered-like" reverse domain.
文献关键词：
中图分类号：
作者姓名：
Bin Chen;Jinyun Ju;Wenzong Yin;Xu Tang;Renjie Chen;Aru Yan;Longquan Hou;Yeyuan Du
作者机构：
CAS Key Laboratory of Magnetic Materials and Devices,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Environment and Safety Engineering,North University of China,Taiyuan 030051,China
文献出处：
引用格式：
[1]Bin Chen;Jinyun Ju;Wenzong Yin;Xu Tang;Renjie Chen;Aru Yan;Longquan Hou;Yeyuan Du-.Coercivity enhancement of Ce-containing hot-deformed magnets by grain boundary diffusion of DyF3)[J].稀土学报（英文版）,2022(02):289-295
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AB值：
0.523207
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