High-temperature magnetic properties of anisotropic Mn Bi/Nd Fe B hybrid bonded magnets
来源期刊：Rare Metals2016年第6期
论文作者：Dong-Tao Zhang Peng-Fan Wang Ming Yue Wei-Qiang Liu Jiu-Xing Zhang Jennifer Anand Sundararajan You Qiang
文章页码：471 - 474
摘 要：Anisotropic Mn Bi/Nd Fe B（Mn Bi contents of0 wt%, 20 wt%, 40 wt%, 60 wt%, 80 wt%, and 100 wt%）hybrid bonded magnets were prepared by molding compression using Mn Bi powders and commercial hydrogenation disproportionation desorption and recombination（HDDR） Nd Fe B powders. Magnetic measurements at room temperature show that with Mn Bi content increasing, the magnetic properties of the Mn Bi/Nd Fe B hybrid bonded magnets all decrease gradually, while the density of the hybrid magnets improves almost linearly. In a temperature range of 293–398 K, the coercivity temperature coefficient of the hybrid magnets improves gradually from-0.59 %áK-1for the pure Nd Fe B bonded magnet to-0.32 %áK-1for the hybrid bonded magnet with 80 wt%Mn Bi, and the pure Mn Bi bonded magnet exhibits a positive coercivity temperature coefficient of 0.61 %áK-1.
Dong-Tao Zhang1，Peng-Fan Wang1，Ming Yue1，Wei-Qiang Liu1，Jiu-Xing Zhang1，Jennifer Anand Sundararajan2，You Qiang2
1. College of Materials Science and Engineering, Beijing University of Technology2. Physics Department, University of Idaho
摘 要：Anisotropic Mn Bi/Nd Fe B（Mn Bi contents of0 wt%, 20 wt%, 40 wt%, 60 wt%, 80 wt%, and 100 wt%）hybrid bonded magnets were prepared by molding compression using Mn Bi powders and commercial hydrogenation disproportionation desorption and recombination（HDDR） Nd Fe B powders. Magnetic measurements at room temperature show that with Mn Bi content increasing, the magnetic properties of the Mn Bi/Nd Fe B hybrid bonded magnets all decrease gradually, while the density of the hybrid magnets improves almost linearly. In a temperature range of 293–398 K, the coercivity temperature coefficient of the hybrid magnets improves gradually from-0.59 %áK-1for the pure Nd Fe B bonded magnet to-0.32 %áK-1for the hybrid bonded magnet with 80 wt%Mn Bi, and the pure Mn Bi bonded magnet exhibits a positive coercivity temperature coefficient of 0.61 %áK-1.
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