Electrochemical synthesis and magnetic properties of Nd-Fe-B-Tb nanowires

被引：4
|
作者：
Kang, Licong [1 ]
Cui, Chunxiang [1 ]
Yang, Wei [1 ]
Ding, Jinhua [1 ]
Li, Qiong [2 ]
Guo, Manfei [1 ]
机构：
[1] Hebei Univ Technol, Sch Mat Sci & Engn, Key Lab New Type Funct Mat Hebei Prov, Tianjin 300130, Peoples R China
[2] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2020年 / 261卷
基金：
中国国家自然科学基金;
关键词：
Nd-Fe-B-Tb nanowires; Electrodeposition; Microstructure; Magnetic properties; Coercivity mechanism;
D O I：
10.1016/j.mseb.2020.114668
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nd-Fe-B-Tb nanowires were synthesized in AAO templates by electrodepositon through doping Tb3+ into Nd-Fe-B solution. The as-deposited nanowires are composed of Fe and amorphous phases, showing soft magnetic properties. Annealing makes Nd-Fe-B nanowires consist of Nd2Fe14B, Fe3B and NdB4 phases and exhibits hard magnetic characteristic due to the formation of hard Nd2Fe14B, Fe3B phases. After adding Tb3+ , some new (Nd,Tb)(2)Fe14B, Tb2Fe14B, Fe3Tb and TbB50 phases, form in annealed nanowires. The existence of (Nd,Tb)(2)Fe14B and Tb2Fe14B phases with high anisotropy fields, the interface elastic coupling effect between different phases and the coherent phase interface increases the coercivity and remanence. Nd-Fe-B-Tb nanowires exhibit the optimal comprehensive magnetic properties at 0.05 mol/L Tb3+ concentration due to the highest content of Tb2Fe14B phase.
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页数：8
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