Thermodynamic and surface properties of liquid Mg-Zn alloys

A statistical thermodynamic theory, in conjunction with a complex formation model, was used to investigate the thermodynamic and surface properties of liquid Mg-Zn alloys. Our expressions reproduce the thermodynamic functions such as free energy of mixing and enthalpy of mixing. The study of concentration fluctuations in the long-wavelength limit (S-CC(0)) provides structural information about liquid Mg-Zn alloys. S-CC(0) was further used to obtain the chemical short-range order parameter (alpha (1)) to quantify the degree of order. The study shows that Mg atoms cause a decrease of surface tension in Mg-Zn liquid alloys. (C) 2001 Elsevier Science BY. All rights reserved.