COMPARATIVE THERMODYNAMIC ANALYSIS OF THE BINARY-SYSTEM BI-SB

Results of the comparative thermodynamic analysis of the binary system Bi-Sb obtained by DTA measurements and predicting are presented in th is paper. Activities, activity coefficients, partial and integral mola r quantities for Bi and Sb at temperatures 973, 1073 and 1173 K in the investigated binary system Bi-Sb determined by DTA measurements and t hermodynamic predicting are given. An excellent agreement between the experimental and predicted results is reached. Also, a phase diagram o f the investigated system Bi-Sb obtained by DTA shows good agreement w ith literature and it can be concluded that DTA could be satisfactoril y used for quantitative thermodynamic analysis of any binary system co ntaining equilibrium between solid and liquid solutions. It was also d etermined that conclusion about linear dependence of gKs constant for binary eutectic systems and systems with phase transformation is valid for binary system containing equilibrium between solid and liquid sol utions too.