Phase relationships in the Yb-Fe-Sb system at 530 ℃  

作　　者：刘敬旗 苏昆朋 杨小毛 王茜娜 李均钦 

机构地区：[1]College of Physical Science and Technology, Guangxi University [2]Institute of Materials Science, Guangxi University [3]Key Laboratory of Non-Ferrous Metal Materials and New Processing Technology, Ministry of Education, Guangxi University [4]College of Materials Science and Engineering, Shenzhen University [5]Shenzhen Key Laboratory of Special Functional Materials

出　　处：《Journal of Rare Earths》2009年第1期104-108,共5页稀土学报（英文版）

基　　金：supported by the National Natural Science Foundation of China ( 50471108)

摘　　要：Phase relationships in the Yb-Fe-Sb ternary system at 530 °C were investigated mainly by powder metallurgy and X-ray powder diffraction.Nine binary compounds（Yb6Fe23, Yb2Fe17, FeSb, FeSb2, YbSb2, YbSb, Yb11Sb10, Yb4Sb3, and αYb5Sb3） and one ternary compound（Fe4YbSb12） were confirmed in this system at 530 °C.The homogeneity range of FeSb phase extended from approximately 43at.%Sb to 45at.%Sb, the maximum solid solubility of Sb in Fe phase and Yb in FeSb phase was approximately 3at.%Sb and 1at.%Yb at 530 °C, respectively.Isothermal section of the phase diagram of the Yb-Fe-Sb ternary system at 530 °C consisted of thirteen single-phase regions, twenty-four two-phase regions, and twelve three-phase regions.Phase relationships in the Yb-Fe-Sb ternary system at 530 °C were investigated mainly by powder metallurgy and X-ray powder diffraction.Nine binary compounds（Yb6Fe23, Yb2Fe17, FeSb, FeSb2, YbSb2, YbSb, Yb11Sb10, Yb4Sb3, and αYb5Sb3） and one ternary compound（Fe4YbSb12） were confirmed in this system at 530 °C.The homogeneity range of FeSb phase extended from approximately 43at.%Sb to 45at.%Sb, the maximum solid solubility of Sb in Fe phase and Yb in FeSb phase was approximately 3at.%Sb and 1at.%Yb at 530 °C, respectively.Isothermal section of the phase diagram of the Yb-Fe-Sb ternary system at 530 °C consisted of thirteen single-phase regions, twenty-four two-phase regions, and twelve three-phase regions.

关 键 词：rare earth alloys and compounds Yb-Fe-Sb phase diagram thermoelectric materials powder metallurgy X-ray diffraction 

分 类 号：TG111.5[金属学及工艺—物理冶金]