HighlightsThe enthalpies of mixing of liquid Co–Sn alloys between T = (673 and 1773) K.The temperature dependence of the enthalpies of mixing was described.Full report of measured values including polynomial coefficients.

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, and xCo/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.

Highlights► First paper providing enthalpy of mixing determined by calorimetry for Al–Cu–Sn. ► Comparative discussion of values derived from KEMS data published before. ► Enthalpy of mixing at 1000 °C described for the entire ternary system Al–Cu–Sn. ► New experimental enthalpy of mixing values for the binary Al–Cu system.

Highlights► First paper providing enthalpy of mixing determined by calorimetry for Ni–Sb. ► First paper providing enthalpy of mixing determined by calorimetry for Ni–Sb–Sn. ► Full report of measured values for readers own evaluation. ► Isoenthalpy plot and detailed discussion of possible ternary interactions.