Phase diagram and thermodynamic model for the Cu-Si and the Cu-Fe-Si systems

Several processes are designed to treat different type of metallic waste. It is common to find elements like copper, iron and silicon in such systems; the prediction of their behaviour in different conditions can help in improving the efficiency of these treatments. In the present work, the thermodynamic reassessments of the binary Cu-Si and the ternary Cu-Fe-Si systems are proposed. Differential Thermal Analysis and Scanning Electron Microscopy are the techniques adopted to collect new experimental data regarding the transition temperatures and phase equilibria of the investigated systems. The Calphad approach is used to model the phase diagrams of the binary Cu-Si and the ternary Cu-Fe-Si, starting from the new obtained data and the ones available in literature. (C) 2019 Elsevier B.V. All rights reserved.