Comparative thermodynamic study and phase equilibria of the Bi–Ga–Sn ternary system

• Published in: International journal of materials research Vol. 98; no. 10; pp. 1025 - 1030
• Main Authors: Živković, D., Katayama, I., Gomidželović, L., Manasijević, D., Novaković, R.
• Format: Journal Article
• Language: English
• Published: Munich De Gruyter 01-10-2007; Hanser
• Subjects: Alloy thermodynamics; Applied sciences; Bi – Ga – Sn alloys; Exact sciences and technology; Metals. Metallurgy; Oelsen calorimetry; Phase equilibria; Ternary systems; Thermodynamics; Ternary system; Alloy thermodynamics; Ternary systems; Phase equilibria; Calorimetry; Bi-Ga-Sn alloys; Phase equilibrium; Comparative study; Oelsen calorimetry
• ISSN: 1862-5282; 2195-8556
• DOI: 10.3139/146.101561

The results of a comparative thermodynamic investigation of the Bi – Ga – Sn system, giving experimentally obtained results and calculated thermodynamic data, are presented in this paper. Oelsen calorimetry was performed for the experimental determination of thermodynamic properties in the section with a molar ratio of Bi: Sn = 1: 3, while the Redlich – Kister – Muggianu method was applied for thermodynamic predicting in the sections with molar ratio Bi: Sn = 1: 3, 1: 1, 3: 1. Thermodynamic parameters – partial and integral molar quantities, as well as gallium activities, were determined at the temperatures of 873 and 973 K. Phase equilibria in the Bi – Ga – Sn ternary system have been studied experimentally – using differential thermal analysis and scanning electron microscopy with energy dispersive X-rays, while the calculation of phase diagram was done according to the CALPHAD method. The phase diagram of the section with molar ratio of Bi: Sn = 1: 3 is given, as well as the phase diagram of the ternary Bi – Ga – Sn system at 373 K.