收录:
摘要:
Anisotropic MnBi/SmFeN (MnBi = 0, 20, 40, 60, 80, and 100 wt. %) hybrid bonded magnets were prepared using MnBi powders and commercial SmFeN powders. With the increase in MnBi content from 0 to 100 wt. %, the density of the hybrid magnets improves linearly from 4.27 g/cm(3) to 6.3 g/cm(3), while the coercivity of the hybrid magnets does not change much at 293 K. For the pure MnBi magnet, the coercivity is increased from 10.76 kOe at 293K to 16.5 kOe at 373 K. For the hybrid magnet with 40 wt. % MnBi, the coercivity is increased by 19% compared to pure SmFeN magnet at 373 K. In the temperature range of 293 K-373 K, the coercivity temperature coefficient of the hybrid magnets changes gradually from -0.42%/K for the pure SmFeN magnet to -0.11%/K for the magnet with 80 wt. % MnBi, and becomes 0.67%/K for the pure MnBi magnet. (C) 2014 AIP Publishing LLC.
关键词:
通讯作者信息:
电子邮件地址:
来源 :
JOURNAL OF APPLIED PHYSICS
ISSN: 0021-8979
年份: 2014
期: 17
卷: 115
3 . 2 0 0
JCR@2022
ESI学科: PHYSICS;
ESI高被引阀值:202
JCR分区:2
中科院分区:3