Bulk α-Fe/Nd2Fe14B nanocomposite magnets prepared by hot deformation of amorphous Nd10.5Fe82Cu1.5B6
Bulk α-Fe/Nd2Fe14B nanocomposite magnets prepared by hot deformation of amorphous Nd10.5Fe82Cu1.5B6
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DOI：
10.1016/j.matlet.2013.06.107
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发表时间：
2013-10
影响因子：
3
通讯作者：
Fuchen Hou;Yiming Cheng;Li Lou;Hailing Li;D. Guo;Wei Li;Xiaohong Li;Xiangyi Zhang
中科院分区：
文献类型：
--
作者：
Fuchen Hou;Yiming Cheng;Li Lou;Hailing Li;D. Guo;Wei Li;Xiaohong Li;Xiangyi Zhang
研究了在973K下，在350 Mpa的高应力下，通过热机械形变的方法制备了块体α-Fe/Nd2Fe14B非晶Nd10.5Fe82Cu1.5B6。应变速率对Nd2Fe14B硬磁相(00 L)织构的生长有显著影响。高应变速率ε̇=0.1MGOe−1有利于硬质相的(00l)织构生长，在与应力轴平行和垂直的方向之间产生较大的磁各向异性，沿压力方向的最大能量积为(BH)max=16.1MGOe。随着应变速率的进一步提高，硬质相的(00l)织构变弱。
In this study, the fabrication of bulk α-Fe/Nd 2 Fe 14 B nanocomposite magnets via a thermomechanical deformation of Nd-lean amorphous Nd 10.5 Fe 82 Cu 1.5 B 6 at a high uniaxial stress of 350 MPa at 973 K has been investigated. Strain rate has a significant effect on the growth of (00 l) texture of hard-magnetic Nd 2 Fe 14 B phase. A high strain rate ε ̇= 0.1 s− 1 favors the (00l) texture growth of the hard phase, which yields a large magnetic anisotropy between the directions parallel and perpendicular to the stress axis and a maximum energy product of (BH) max= 16.1 MGOe along the pressure direction in the nanocomposite magnets. The (00l) texture of the hard phase becomes weak with further increasing the strain rate.