Anisotropic Sm_2Co_(17) nano-flakes produced by surfactant and magnetic field assisted high energy ball milling  

作　　者：王大鹏 李晓东 常颖 朱明刚 李卫 齐民 

机构地区：[1]School of Materials Science and Technology,Dalian University of Technology [2]School of Automotive Engineering,Dalian University of Technology [3]Research Institute of Functional Materials,Central Iron & Steel Research Institute

出　　处：《Journal of Rare Earths》2013年第4期366-369,共4页稀土学报（英文版）

基　　金：supported by National Natural Science Foundation of China (50901011,51105059);the Fundamental Research Funds for the Central Universities (DUT12LK03)

摘　　要：Anisotropic Sm2C017 flakes with high aspect ratio were prepared by magnetic field assisted high energy ball milling in the presence of heptane and oleic acid （OA）. The thickness of flakes was only tens of nanometers. Coercivity of 3 kOe was achieved in the nano-flakes. Most interestingly, the magnetic crystalline anisotropy of Sm2C017 flakes was improved compared to that of particles made by traditional ball milling. These anisotropic Sm2CoL7 nano-flakes could be the building blocks for the future high-performance nano-composite permanent magnets with an enhanced energy product.Anisotropic Sm2C017 flakes with high aspect ratio were prepared by magnetic field assisted high energy ball milling in the presence of heptane and oleic acid （OA）. The thickness of flakes was only tens of nanometers. Coercivity of 3 kOe was achieved in the nano-flakes. Most interestingly, the magnetic crystalline anisotropy of Sm2C017 flakes was improved compared to that of particles made by traditional ball milling. These anisotropic Sm2CoL7 nano-flakes could be the building blocks for the future high-performance nano-composite permanent magnets with an enhanced energy product.

关 键 词：Sm2Co17 nano-flakes ANISOTROPIC surfactant-assisted magnetic induced rare earths 

分 类 号：O611.4[理学—无机化学] TB383.1[理学—化学]