Cu-Ce-S,Cu-Y-S溶液体系热力学性质的研究SCIEI

用化学平衡法研究了1200℃铜液中Ce-S和Y-S的反应平衡。求得Ce和Y的脱硫常数、脱硫产物CeS与YS的标准生成目由能、溶质间活度相互作用系数,Ce和Y在铜液中的标准溶解自由能及其活度系数。     

THERMODYNAMIC PROPERTIES Cu-Ce-S AND Cu-Y-S LIQUID SOLUTIONS

The thermodynamic properties of Cu-Ce-S and Cu-Y-S liquid solutions were studied bythe chemical equilibrium technique at 1200℃. The equilibrium constants and the standardfree energies of formation of CeS and YS were determined for the reactions:CeS=[Ce]+[S] and YS = [Y]+[S] . For the solution of Ce_(1) and Y_(l) in pure Cu according tothe reactions: Ce_(1)= [Ce] and Y_(1)= [Y] , the standard free energies of solutions were obtained.The first order and second order interaction coefficients between solute elements aswell as the activity coefficients γ_(Ce)~0 and γ_Y~0 in liquid Cu were also determined.