The Ag-Al-Cu system. II. A thermodynamic evaluation of the ternary system
V. T. Witusiewicz, U. Hecht, S. G. Fries, S. Rex.
Journal of Alloys and Compounds, 387, 217-227, (2005)
The thermodynamic description of the Ag–Al–Cu system is obtained by modelling the Gibbs energy of all individual phases in the system using the CALPHAD approach. The model parameters have been evaluated, by means of a computer optimisation technique, based on the descriptions of the constituent binaries proposed in the first part of the work and relevant experimental information for ternary alloys both from literature and own experimental measurements. Several vertical and isothermal sections, the liquidus surface and some thermodynamic properties are calculated using the evaluated parameters. A good agreement between the calculations and the experimental data is achieved.
Keyword(s): Ag–Al–Cu; Phase diagram; Thermodynamics; CALPHAD; Modelling