期刊
MATERIALS TRANSACTIONS
卷 57, 期 11, 页码 1960-1965出版社
JAPAN INST METALS & MATERIALS
DOI: 10.2320/matertrans.M2016160
关键词
neodymium-iron-boron magnet; coercivity; grain boundary; gallium addition
As a part of the challenge of reducing the use of scarce rare-earth elements in magnets, a Dy-free Nd-Fe-B magnet with the remanence and coercivity of 1370 mT and 1830 kA/m, respectively, was investigated. The grain boundary was composed of mainly two phases, R6T13M and R-rich phases. The R6T13M phase formed at around 750 to 1000 K, and in that temperature range, coercivity improved and remanence decreased. By increasing the amount of grain boundary phases to 17.3 at% R addition, coercivity higher than 1990 kA/m (25 kOe) was realized.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据