Thermodynamic Description of the Cu-Ni-Si System

A thermodynamic description of the Cu-Ni-Si ternary system has been carried out by using the calculation of phase diagrams method. Among the three binary sub-systems, Cu-Ni, Cu-Si and Ni-Si, are taken from earlier assessments and the Cu-Ni-Si ternary system are optimized in this study by using the reported experimental data. Six isothermal sections and four vertical sections with the experimental data are presented, along with the liquidus projection and the reaction scheme. Comprehensive comparisons between the calculated and measured phase diagrams show that the latest experimental information can be satisfactorily accounted for by the present thermodynamic description.