Processing YCo5 Permanent Magnetic Submicron Flakes by Surfactant-Assisted High-Energy Ball Milling
ZHANG Jing-Jing,GAO Hong-Mei,YAN Yu,BAI Xue,WANG Wen-Quan,SU Feng,DU Xiao-Bo**
State key Laboratory for Superhard Materials and Department of Physics, Jilin University, Changchun 130012
Processing YCo5 Permanent Magnetic Submicron Flakes by Surfactant-Assisted High-Energy Ball Milling
ZHANG Jing-Jing,GAO Hong-Mei,YAN Yu,BAI Xue,WANG Wen-Quan,SU Feng,DU Xiao-Bo**
State key Laboratory for Superhard Materials and Department of Physics, Jilin University, Changchun 130012
摘要 YCo5 alloy is processed by surfactant−assisted high-energy ball milling. Oleic acid is used as the surfactant and is 20% of the starting powder. The resultant particles are flakes of several microns in length and width, and 20–200 nm in thickness. The flakes have significant crystallographic anisotropy and the c -axis (also easy magnetization axes) is perpendicular to the flake's surface. Maximum coercivity of 192 kA/m is obtained in the sample milled for 100 min. Excess milling results in the appearance of Fe and deteriorates the permanent magnetic properties seriously.
Abstract ：YCo5 alloy is processed by surfactant−assisted high-energy ball milling. Oleic acid is used as the surfactant and is 20% of the starting powder. The resultant particles are flakes of several microns in length and width, and 20–200 nm in thickness. The flakes have significant crystallographic anisotropy and the c -axis (also easy magnetization axes) is perpendicular to the flake's surface. Maximum coercivity of 192 kA/m is obtained in the sample milled for 100 min. Excess milling results in the appearance of Fe and deteriorates the permanent magnetic properties seriously.
收稿日期: 2011-09-25
出版日期: 2012-04-30
:
75.50.Tt
(Fine-particle systems; nanocrystalline materials)
75.50.Vv
(High coercivity materials)
75.50.Ww
(Permanent magnets)
引用本文:
ZHANG Jing-Jing,GAO Hong-Mei,YAN Yu,BAI Xue,WANG Wen-Quan,SU Feng,DU Xiao-Bo**. Processing YCo5 Permanent Magnetic Submicron Flakes by Surfactant-Assisted High-Energy Ball Milling[J]. 中国物理快报, 2012, 29(5): 57501-057501.
5 Permanent Magnetic Submicron Flakes by Surfactant-Assisted High-Energy Ball Milling. Chin. Phys. Lett., 2012, 29(5): 57501-057501.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/29/5/057501
或
https://cpl.iphy.ac.cn/CN/Y2012/V29/I5/57501
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2012, Vol. 29 
