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Effects of Ce doping on the structure and magnetic properties for NdFeB alloy
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School of Materials Science and Engineering,Nanchang Hangkong University,School of Materials Science and Engineering,Nanchang Hangkong University,School of Materials Science and Engineering,Nanchang Hangkong University,School of Materials Science and Engineering,Nanchang Hangkong University,School of Materials Science and Engineering,Nanchang Hangkong University,Institute for Rare Earth Magnetic Materials and Devices,Jiangxi University of Science and Technology

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TM273

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    Abstract:

    (Nd1-xCex)2Fe14B ribbons were prepared by arc melting followed by melt spinning. It is found that the ribbons are mainly composed of the main phase Nd2Fe14B and α-Fe phase. The optimum magnetic properties can be obtained using the wheel velocity of 30 m/s. With increasing the Ce content, the coercivity reduces from 800 kA/m when x=0 to 413 kA/m when x=0.5. However, the coercivity is anomalously high when the 20% Nd is replaced by Ce. It is attributed to the phase segregation induced by mixed valence state of Ce. No reduction in the maximum energy product is demonstrated when x=0.25. It is suggested that Ce has a great potential application in the permanent magnetic materials.

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[Wang Yuanliang, Zhang Guoqing, Huang Youlin, Hou Yuhua, Guo Kaixiang, Zhong Zhenchen. Effects of Ce doping on the structure and magnetic properties for NdFeB alloy[J]. Rare Metal Materials and Engineering,2018,47(1):146~150.]
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History
  • Received:November 10,2016
  • Revised:January 16,2017
  • Adopted:January 23,2017
  • Online: February 07,2018

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