Effect of Wheel Speeds on the Microstructure and Magnetic Properties of Melt-Spun (Nd0.75,Dy0.25)10.5Zr2Fe82B5.5 Ribbons

摘要：

Nanocomposite (Nd,Dy)2Fe14B/α-Fe magnets were prepared by directly solidification (DS). The effect of wheel speed on the magnetic properties, microstructure and exchange coupling interaction has been studied. It was found that a uniform R2Fe14B/α-Fe nanocomposite structure with fine α-Fe grains can be developed at an optimum wheel speed of about 18 m/s. Without any heat treatment, the optimal ribbons (v = 18 m/s) show a strong exchange coupling interaction and good magnetic properties, e.g. iHC=1027 kA/m, mr =0.71, (BH)max=174 k.J/m3.

关键词： Nanocomposite Magnets Melt-Spinning Exchange Coupling Microstructure Magnetic Properties

作者: Jie Qiu Shandong Li Meimei Liu Jianpeng Wu Yi Hu Xinle Cai Jianhua Lin Lili Wang

作者单位: Department of Physics, Fujian Normal University, Fuzhou 350007, China Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002,

会议类型: 国际会议

会议名称: 2012 International Conference on Advanced Materials Design and Machanics(2012先进材料设计与机械学国际会议 ICAMDM 2012)

会议地点: 厦门

会议语种:英文

页码: 23-26

在线出版日期: 2012-06-05（万方平台首次上网日期，不代表论文的发表时间）