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稀土永磁体及其制备方法
Authors
严长江
李东
+3 more
郭帅
闫阿儒
陈仁杰
Publication date
29 April 2015
Publisher
Abstract
本发明提供了一种稀土永磁体及其制备方法,所述稀土永磁体的质量比的分子通式为MMa-bHREbFeeBdTMc;其中,MM代表(LRE1-xCex),且x与1-x均为质量比,LRE为Pr、Nd中的一种或两种,HRE为La、Y、Gd、Tb、Dy、Ho、Er、Yb、Tm中的一种或几种,TM为Al、Cu、Mn、Ga、Nb、Zr中的一种或几种,且0.24≤x≤0.6,27≤a≤36,0≤b≤10,0≤c≤3,0.8≤d≤1.5,e=100-a-d-c-d;所述稀土永磁体的主相为2-14-1相,此外,还存在富稀土相及CeFe2相。本发明的稀土永磁体及其制备方法,使用了一部分铈取代镨或钕,使得该稀土永磁体的成本大幅下降,并保持较高的矫顽力
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Last time updated on 22/01/2018