Structure and magnetic properties of bulk anisotropic SmCo5/α-Fe nanocomposite permanent magnets with different α-Fe content

被引：24

作者：

Liu, W. Q. ^{[1
]}

Zuo, J. H. ^{[1
]}

Yue, M. ^{[1
]}

Cui, Z. Z. ^{[1
]}

Zhang, D. T. ^{[1
]}

Zhang, J. X. ^{[1
]}

Zhang, P. Y. ^{[2
]}

Ge, H. L. ^{[2
]}

Guo, Z. H. ^{[3
]}

Li, W. ^{[3
]}

机构：

[1] Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

[2] China Jiliang Univ, Magnetism Key Lab Zhejiang Prov, Hangzhou 310018, Peoples R China

[3] Cent Iron & Steel Res Inst, Div Funct Mat, Beijing 100081, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 109卷 / 07期

关键词：

D O I：

10.1063/1.3564967

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Chemical coating, hot compaction, and hot deformation techniques have been applied to prepare bulk anisotropic SmCo5/alpha-Fe nanocomposite magnets. The effects of alpha-Fe content on the structure and magnetic properties of the magnets were studied. With the increase of the alpha-Fe content, both the saturation magnetization (M-s) and remanence (M-r) of the magnets rise first, peak at 10 vol. % alpha-Fe content and then fall while the coercivity (H-ci) of the magnets drops simultaneously. Crystal structure analysis shows that the magnets exhibit a strong c-axis crystal texture of the SmCo5 phase, which, however, weakens gradually as the alpha-Fe content increases. Microstructure observation also shows that there are many SmCo5 equiaxial grains even after hot deformation in the magnets with 15 vol. % alpha-Fe. (c) 2011 American Institute of Physics. [doi:10.1063/1.3564967]

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