Enthalpies de formation des alliages liquides bismuth-étain-gallium à 723 k. Choix d’une représentation analytique des grandeurs d’excès intégrales et partielles de mélange

With a calorimeter at 723 K, we have determined the enthalpies of formation of some ternary liquid alloys which consist of bismuth-gallium-tin. We have compared our experimental results with those estimated according to excess functions of mixture and we have found that enthalpies of mixture are satisfactory represented by proposed equation. Based on these results, we give an analytical representation of partial mixing enthalpies of this ternary liquid system