| Preparation of Nanoscale Sm2Co17 Flakes by Ball Milling in Magnetic Field |
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| 引用本文： | Xiao-dong LI,Ying CHANG,Zhi-yongWEI,Guang-yi CHEN,Ming-gangZHU,Ling WENG.Preparation of Nanoscale Sm2Co17 Flakes by Ball Milling in Magnetic Field[J].钢铁研究学报(英文版),2014,21(5):517-520. |
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| 作者姓名： | Xiao-dong LI Ying CHANG Zhi-yongWEI Guang-yi CHEN Ming-gangZHU Ling WENG |
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| 基金项目： | Item Sponsored by National Natural Science Foundation of China （50901011, 51105059, 51201055） |
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| 摘 要： | A new preparation method of Sm2Co17 nanoflakes was investigated. Hard magnetic Sm2 Co17 nanoflakes with thickness of 20-100 nm were obtained by milling in heptane and oleic acid under a magnetic field of 1.5 T for 0.5-20 h. It was shown that higher anisotropic magnetic properties would be induced by the flake-shape anisotropy when the prepared Sm2 Colt particles are milled with a magnetic field. The magnetic anisotropy of flakes after being aligned under the magnetic field of 1.5 T could be further enhanced, and the value of （BH）m was 128 kJ · m a Both anisotropy and properties are better than those of the nano-particles milled without a magnetic field.
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| 关 键 词： | Sm2Co17 纳米颗粒 磁场作用 磁各向异性 球磨 SM2 磁特性 性能比 |
| 收稿时间： | 12 December 2012 |
Preparation of Nanoscale Sm2Co17 Flakes by Ball Milling in Magnetic Field |
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| Xiao-dong LI,Ying CHANG,Zhi-yong WEI,Guang-yi CHEN,Ming-gang ZHU,Ling WENG.Preparation of Nanoscale Sm2Co17 Flakes by Ball Milling in Magnetic Field[J].Journal of Iron and Steel Research,2014,21(5):517-520. |
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| Authors: | Xiao-dong LI Ying CHANG Zhi-yong WEI Guang-yi CHEN Ming-gang ZHU Ling WENG |
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| Affiliation: | 1. State Key Laboratory of Structural Analysis for Industrial Equipment, School of Automotive Engineering,Dalian University of Technology, Dalian 116024, Liaoning, China 2. Research Institute of Functional Materials,Central Iron and Steel Research Institute, Beijing 100081, China 3. Key Laboratory of Electro-magnetic Field andElectrical Apparatus Reliability of Hebei Province, Hebei University of Technology, Tianjin 300130, China |
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| Abstract: | A new preparation method of Sm2Co17 nanoflakes was investigated. Hard magnetic Sm2Co17 nanoflakes with thickness of 20-100 nm were obtained by milling in heptane and oleic acid under a magnetic field of 1. 5 T for 0. 5-20 h. It was shown that higher anisotropic magnetic properties would be induced by the flake-shape anisotropy when the prepared Sm2Co17 particles are milled with a magnetic field. The magnetic anisotropy of flakes after being aligned under the magnetic field of 1. 5 T could be further enhanced, and the value of (BH)m was 128 kJ·m-3. Both anisotropy and properties are better than those of the nano-particles milled without a magnetic field. |
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| Keywords: | anisotropy mechanical alloying nanostructure magnetic-field ball milling 2∶17 type SmCo alloy |
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