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纳米晶复合Fe3B／Nd2Fe14B稀土永磁材料磁性能研究
Magnetic Properties of Fe3B/Nd2Fe14B Nanocomposite Rare Earth Permanent Magnets
【Author】 Wang Jinzhi, Li Guodong ( College of Sciences and Technology , NeiMongol University, Hohhot 010021 , China)
【机构】 内蒙古大学理工学院；
【摘要】 利用熔体快淬和晶化热处理法制备了成分为Nd4.5Fe74.5+xB21-x(x=0;1;2;3;4)和Nd4．5-yTbyFe75.5B20(y=0;1)的纳米晶复合永磁合金,采用X射线衍射及VSM分析研究了材料的微观结构与磁性能。结果表明:Fe3B／Nd2Fe14B纳米晶复合稀土永磁合金的磁性能与硼含量有密切关系;退火工艺对合金磁性能的影响非常显著,且1％的Tb掺杂明显提高了材料的磁性能。
【Abstract】 The melt spun ribbons of nanocomposite Nd4.5Fe74.5+xB21-x(x=0, 1, 2, 3, 4) and Nd4.5-y TbyFe75.5B20(y = 0, 1 ) were prepared by rapid quenching and annealing treatment. The microstruc-tures and magnetic properties of the samples were investigated by X-ray diffraction (XRD) and vibrating sample magnetometer (VSM). The results show that intimate relationship exits between content of B and magnetic properties of Fe3B/Nd2Fe14 B nanocomposite rare earth permanent magnetic alloys, so that the annealing process influences obviously magnetic properties of samples, and adding 1 % Tb element increases notably magnetic properties.
【Key words】 nanocomposite permanent materials； melt-spin； annealing process； magnetic properties； rare earths；
- 【会议录名称】 中国稀土学会第一届青年学术会议论文集
- 【会议名称】中国稀土学会第一届青年学术会议
- 【会议时间】2005-08
- 【会议地点】中国内蒙古包头
- 【分类号】TM273
- 【主办单位】中国稀土学会