Magnetic anisotropy in bulk nanocrystalline SmCo5 permanent magnet prepared by hot deformation

被引:59
作者
Yue, M. [1 ]
Zuo, J. H. [1 ]
Liu, W. Q. [1 ]
Lv, W. C. [1 ]
Zhang, D. T. [1 ]
Zhang, J. X. [1 ]
Guo, Z. H. [2 ]
Li, W. [2 ]
机构
[1] Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
[2] Cent Iron & Steel Res Inst, Div Funct Mat, Beijing 100081, Peoples R China
关键词
ND-FE-B; UPSET;
D O I
10.1063/1.3553933
中图分类号
O59 [应用物理学];
学科分类号
摘要
Bulk anisotropic nanocrystalline SmCo5 magnets have been prepared by hot deformation method. The height reduction of the magnets plays a key role in inducing the crystallographic alignment in the magnet. Increase of height reduction to 90% leads to the formation of platelet shape grains perpendicular to the press direction; correspondingly c-axis crystallographic texture and magnetic anisotropy were developed in the deformed magnets. The coercivity of the magnets increases first, and then decreases again with the increase of the height reduction. The magnet with 70% height reduction exhibits a high coercivity over 5 T. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3553933]
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页数:3
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