Structural and magnetic properties of （Sm0.5Nd0.5）2(Fe1-xCox)17compounds
来源期刊：Rare Metals2003年第1期
论文作者：WANG Bowen, YAN Rongge HAO Yanming, CAO Shuying, and WENG LingSchool of Electrical Engineering, Hebei University of Technology, Tianjin , ChinaInternational Center for Materials Physics, the Academy of Sciences, Shenyang , China
文章页码：55 - 59
摘 要：<正> The structure, magnetization, and magnetocrystalline anisotropy were investigated using X-ray diffraction, vibrating sample magnetometer, and AC susceptibility-meter. It is found that the microstructure of （Sm0.5Nd0.5）2（Fe1-xCox）17 alloys is an （Sm,Nd）2（Fe,Co）17 phase with the rhombohedral Th2Zn17-type structure. The Curie temperature Tc increases with the Co concentration increasing, and the magnetization first increases as the Co content increases in （Sm0.5Nd0.5）2（Fe1-xCox）17 alloys and then decreases slowly. The easy magnetization direction （EMD） of （Sm0.5Nd0.5）2（Fe0.25Co0.75）17 is along the c-axis and a strong enhancement of the crystalline anisotropy energy constant K is produced by the addition of some Co atoms. The anisotropy energy constant reaches the maximum when x = 0.75 and then decreases slowly with the Co content further increasing. The （Sm0.5Nd0.5）2（Fe0.25Co0.75）17compound is an optical candidate for the new permanent magnet, which possesses a high magnetization, a high Curie temperature,
摘要：<正> The structure, magnetization, and magnetocrystalline anisotropy were investigated using X-ray diffraction, vibrating sample magnetometer, and AC susceptibility-meter. It is found that the microstructure of （Sm0.5Nd0.5）2（Fe1-xCox）17 alloys is an （Sm,Nd）2（Fe,Co）17 phase with the rhombohedral Th2Zn17-type structure. The Curie temperature Tc increases with the Co concentration increasing, and the magnetization first increases as the Co content increases in （Sm0.5Nd0.5）2（Fe1-xCox）17 alloys and then decreases slowly. The easy magnetization direction （EMD） of （Sm0.5Nd0.5）2（Fe0.25Co0.75）17 is along the c-axis and a strong enhancement of the crystalline anisotropy energy constant K is produced by the addition of some Co atoms. The anisotropy energy constant reaches the maximum when x = 0.75 and then decreases slowly with the Co content further increasing. The （Sm0.5Nd0.5）2（Fe0.25Co0.75）17compound is an optical candidate for the new permanent magnet, which possesses a high magnetization, a high Curie temperature,
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