Determinations of enthalpy and partial molar enthalpy in the alloys Bi-Cd-Ga-In-Zn, Bi-Cd-Ga-Zn and Au-Cu-Sn

In the present study, the relations of thermodynamic associated with Chou's general solution model (GSM), the models of Muggianu and Toop have been used in order to calculate the mixing enthalpy and partial molar mixing enthalpy of mixing of Bi-Cd-Ga-In-Zn, Bi-Cd-Ga-Zn with equimolar section at a temperature of 730 K and Au-Cu-Sn with the section x(Au)/x(cu) = 1/1 on the entire molar fraction range as a function of alloy composition at a temperature of 900 K. Some negativities are reported in the selected alloys mentioned above, particularly at high temperatures for the human health as well as difficulties in experimental measurement and high costs. Moreover, aim of us is to close the current article gap seen in the literature. In order to close the current gap seen in the literature, the article on the thermodynamic properties of the Bi-Cd-Ga-In-Zn alloys are presented in this study. (C) 2015 Elsevier B.V. All rights reserved.