title: Enthalpies of mixing of liquid systems for lead free soldering: Co-Sb-Sn.
abstract: The partial and integral enthalpy of mixing of molten ternary Co-Sb-Sn alloys was determined performing high temperature drop calorimetry in a large compositional range at 1273 K. Measurements have been done along five sections,xSb/xSn≈ 1:1,xSb/xSn≈ 1:3,xSb/xSn≈ 3:1,xCo/xSn≈ 1:4, andxCo/xSb≈ 1:5. Additionally, binary alloys of the constituent systems Co-Sb and Co-Sn were investigated at the same temperature. All the binary data were evaluated by means of a standard Redlich-Kister polynomial fit whereas ternary data were fitted on the basis of an extended Redlich-Kister-Muggianu model for substitutional solutions. An iso-enthalpy plot of the ternary system was constructed. In addition, the extrapolation Model of Toop was applied and compared to our data.
authors.affiliation: Faculté des Sciences, Université Mohammed V-Agdal, Laboratoire de Chimie Physique Générale, Av. Ibn Batouta, B.P. 1014, Rabat, Morocco; University of Vienna, Department of Inorganic Chemistry / Materials Chemistry, Währinger Str. 42, A-1090 Wien, Austria.
authors.forename: A
authors.initials: A
authors.lastname: Elmahfoudi
authors.affiliation: Faculté des Sciences, Université Mohammed V-Agdal, Laboratoire de Chimie Physique Générale, Av. Ibn Batouta, B.P. 1014, Rabat, Morocco.
authors.forename: A
authors.initials: A
authors.lastname: Sabbar
authors.affiliation: University of Vienna, Department of Inorganic Chemistry / Materials Chemistry, Währinger Str. 42, A-1090 Wien, Austria.
authors.forename: H
authors.initials: H
authors.lastname: Flandorfer
keywords: A. Ternary alloy systems; B. Thermodynamic and thermochemical properties; F. Calorimetry