U-Ti二元合金热力学性质  

Thermodynamic properties of binary alloy of U-Ti

作　　者：蒲尚志[1] 王航[1] 张新建[2] 赵南蓉[1] 张文华[1] 罗久里[1] 

机构地区：[1]四川大学化学学院,四川成都610064 [2]表面物理与化学国家重点实验室,四川绵阳621907

出　　处：《化学研究与应用》2008年第11期1502-1504,共3页Chemical Research and Application

基　　金：四川材料与工艺研究所合作项目(HG2007033)

摘　　要：The relationship between U-Ti formation heats and mole fraction of Ti was obtained by Miedema’s model.△mixSE,△mixGE and activity coefficient of the system were calculated based on the free volume theory considering excess entropy and some basic relationships of thermodynamics.The results indicate that U-Ti solution has negative deviation to ideal solution,and the deviation should increase with the decrease of temperature.The relationship between U-Ti formation heats and mole fraction of Ti was obtained by Miedema＇ s model. ΔminS^E,Δmit GE and activity coefficient of the system were calculated based on the free volume theory considering excess entropy and some basic relationships of thermodynamics. The results indicate thin U-Ti solution has negative deviation to ideal solution, and the deviation shottld increase with the decrease of temperature.

关 键 词：MIEDEMA模型 U-Ti合金溶液 热力学性质 

分 类 号：O642.5[理学—物理化学]