THERMODYNAMICS OF Cu-Ce-M (M = Sn , Zn , Pb ) LIQUID SOLUTIONS

来源期刊：中国有色金属学报(英文版)1994年第3期

论文作者：Du, Ting Li Li Guodong

文章页码：17 - 20

Key words：Cu-Ce-M(M=Sn ; Zn ; Pb); liquid solutions ;thermodynamic ;properties

Abstract: The isoactivity of [Ce] of samples in multiple-hole graphite crucibles can be reached by con-trolling the equilibrium oxygen potential of the reaction 2[Ce]+ 3CO=Ce₂O₃ + 3C with C-CO.Using this principle and conjugate gradient method of solving illconditioned equations , the activi-ty interaction coefficients between Ce and Sn . Zn . Pb alloying elements were determined. The e-quilibrium constant of the reaction 2[Ce]+3[O]=Ce₂O₃ and the standard free energy of forma-tion of Ce₂O₃ in liquid Cu were obtained at 1200 ℃ .