Isothermal section of Gd-Sm-Co ternary system at 773K
来源期刊：JOURNAL OF RARE EARTHS2013年第4期
论文作者：朱其明 梁建烈 姚青荣 邓健秋 蒙洁丽 黄加高 庄应烘
文章页码：415 - 419
摘 要：The isothermal section of the phase diagram of the Gd-Sm-Co ternary system at 773K was investigated by X-ray powder diffraction（XRD）,differential thermal analysis（DTA）,optical microscopy and scanning electron microscopy（SEM） techniques.The result shows that the isothermal section consists of 12 single-phase regions,16 two-phase regions and 5 three-phase regions.Five pairs of corresponding compounds of Gd-Co and Sm-Co systems,i.e.,Gd2Co17 and Sm2Co17,Gd2Co7 and Sm2Co7,GdCo3 and SmCo3,GdCo2 and SmCo2,Gd3Co and SmCo form continuous series of solid solutions.The maximum solid solubility of Sm in Gd 4Co3 and Gd12Co7 were about 7.2 at.% and 47.8 at.% Sm,respectively.The maximum solid solubility of Gd in Sm5Co19 and Sm5Co2 were about 4.7 at.% and 7.6 at.% Gd,respectively.The binary compounds Sm9Co4,GdCo5 and SmCo5 were not observed at 773K.No ternary compound was found.
朱其明1，梁建烈1，姚青荣2，邓健秋2，蒙洁丽1，黄加高1，庄应烘3
1. School of Science,Guangxi University for Nationalities2. School of Material and Engineering,Guilin University of Electronic Technology3. Key Laboratory of Nonferrous Metal Materials and New Processing Technology,Guangxi University,Ministry of Education
摘 要：The isothermal section of the phase diagram of the Gd-Sm-Co ternary system at 773K was investigated by X-ray powder diffraction（XRD）,differential thermal analysis（DTA）,optical microscopy and scanning electron microscopy（SEM） techniques.The result shows that the isothermal section consists of 12 single-phase regions,16 two-phase regions and 5 three-phase regions.Five pairs of corresponding compounds of Gd-Co and Sm-Co systems,i.e.,Gd2Co17 and Sm2Co17,Gd2Co7 and Sm2Co7,GdCo3 and SmCo3,GdCo2 and SmCo2,Gd3Co and SmCo form continuous series of solid solutions.The maximum solid solubility of Sm in Gd 4Co3 and Gd12Co7 were about 7.2 at.% and 47.8 at.% Sm,respectively.The maximum solid solubility of Gd in Sm5Co19 and Sm5Co2 were about 4.7 at.% and 7.6 at.% Gd,respectively.The binary compounds Sm9Co4,GdCo5 and SmCo5 were not observed at 773K.No ternary compound was found.
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