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V. I. LYSOV and V. V. YARYSH
«Phase Decomposition in Liquid Binary Alloys of Transition and Noble Metals»
PACS numbers: 61.20.Gy, 61.25.Mv, 64.30.Ef, 64.70.Ja, 64.75.Bc, 65.20.-w, 71.15.Dx
The relative integral enthalpy, entropy, and Gibbs energy of liquid binary alloys of 3d-transition and noble metals are calculated. Only s-electrons are considered as conductivity electrons. The role of partially populated d-bands is reduced to resonance scattering of the s-electrons by d-states. The interaction of s-electrons with the ion subsystem, which does not possess the partially populated d-states, is described using the nonlocal model pseudopotential of electron–ion interaction. The interaction of the s- and d-electrons is described by the hybridization potential of s- and d-states. As shown, the obtained analytical expression for relative integral Gibbs energy is a function of difference between the uniform parts of electron densities of the alloy components, and this difference is a factor, which determines mutual solubility of alloy components.