Microstructures and magnetic properties of Ce32.15Co49.36Cu9.84Fe9.65 magnet sintered at different temperatures
来源期刊：Rare Metals2012年第5期
论文作者：SUN Wei, ZHU Minggang, FANG Yikun, PAN Wei, LI Jiajie, LI Yanfeng, and LI Wei Division of functional Materials, Central Iron and Steel Research Institute Group, Beijing , China
文章页码：470 - 473
摘 要：The microstructures and magnetic properties of Ce-32.15Co49.36Cu9.84Fe9.65 magnet sintered at the temperatures ranging from 1005 to 1105 °C were investigated. The results on scanning electron microscopy and X-ray diffraction analysis indicate that the remanence B r of the magnets is mainly influenced by the degree of the easy-axis orientation when sintering temperature is less than 1085 °C, the rapidly increasing amount of the secondly phase （5:19 phase） gives rise to the deterioration of the magnetic properties of the magnet above 1085 °C. Moreover, it is found that intrinsic coercivity H ci is strongly related to the content of copper in the matrix of the sintered magnets. The optimal sintering temperature is located in 10251055 °C, the corresponding magnetic properties of the magnets are Br =0.685T, Hci =350kA·m-1 , and maximum energy product （BH）m =85.6 kJ·m 3 .
SUN Wei, ZHU Minggang, FANG Yikun, PAN Wei, LI Jiajie, LI Yanfeng, and LI Wei Division of functional Materials, Central Iron and Steel Research Institute Group, Beijing 100081, China
摘 要：The microstructures and magnetic properties of Ce-32.15Co49.36Cu9.84Fe9.65 magnet sintered at the temperatures ranging from 1005 to 1105 °C were investigated. The results on scanning electron microscopy and X-ray diffraction analysis indicate that the remanence B r of the magnets is mainly influenced by the degree of the easy-axis orientation when sintering temperature is less than 1085 °C, the rapidly increasing amount of the secondly phase （5:19 phase） gives rise to the deterioration of the magnetic properties of the magnet above 1085 °C. Moreover, it is found that intrinsic coercivity H ci is strongly related to the content of copper in the matrix of the sintered magnets. The optimal sintering temperature is located in 10251055 °C, the corresponding magnetic properties of the magnets are Br =0.685T, Hci =350kA·m-1 , and maximum energy product （BH）m =85.6 kJ·m 3 .
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