材料科学
纳米复合材料
磁铁
联轴节(管道)
体积分数
相(物质)
各向同性
微磁学
有限元法
合金
凝聚态物理
基质(化学分析)
复合材料
磁化
磁场
机械工程
热力学
光学
化学
物理
有机化学
量子力学
工程类
作者
Hyok-Su Ryo,Lianxi Hu,Yuxi Yang
标识
DOI:10.1016/j.jmmm.2016.11.059
摘要
Developing high efficiency rare earth alloy magnets at low cost is an economically hopeful way to expand their application area. In this study, magnetic properties of nanocomposite isotropic exchange coupled systems with the structure of Nd2Fe14B crystalline grains embedded in α-Fe matrices have been simulated by micromagnetic finite element method (FEM). The results have been analyzed by means of the effect of volume fraction of nanosized exchange coupling area between the magnetically hard Nd2Fe14B and soft α-Fe phase on magnetic properties of the exchange coupled Nd2Fe14B/α-Fe magnetic systems. The results show that the magnetic systems with the structure of Nd2Fe14B grains embedded in α-Fe matrices can have comparatively advanced magnetic properties with small amount of Nd2Fe14B components, because of efficient inter-phase exchange coupling between magnetically hard Nd2Fe14B grains and soft α-Fe matrix.
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