贵金属(Ag,Au,Pt)与稀土所形成二元合金液相混合焓的Miedema理论研究  

Research the Mixing Enthalpies of Liquid Noble Metal(Ag,Au,Pt)-RE Binary Alloys with Miedema Theory

作　　者：龙朝辉[1] 李进[1] 周博[1] 汪啸虎 

机构地区：[1]湘潭大学机械工程学院,湖南湘潭411105

出　　处：《湘潭大学自然科学学报》2014年第2期26-29,共4页Natural Science Journal of Xiangtan University

基　　金：国家自然科学基金项目(51201146)

摘　　要：应用Miedema理论系统地计算了贵金属(Ag,Au,Pt)与17种稀土元素所形成的二元合金的液相混合焓.研究结果表明:贵金属(Ag,Au,Pt)与稀土元素所形成二元合金的液相混合焓均为负;混合焓-成分曲线大致呈对称分布.将计算结果与文献报道的实验数据进行比较,发现二者符合较好.The mixing enthalpies of liquid Noble Metal（Ag,Au,Pt）-RE binary alloys have been calculated with Miedema theory.The research shows that the mixing enthalpy of liquid Noble Metal（Ag、Au、Pt）-RE binary alloys are negative and the curves of mixing enthalpy-composition are roughly symmetric.Moreover,when compared with the reported experimental values and calculated results in this work,the trend of the calculated results are matching the reported data,which greatly proves that the calculated results in this work is reliable.

关 键 词：贵金属稀土合金 液相混合焓 MIEDEMA理论 

分 类 号：O469[理学—凝聚态物理]