Surface tension of liquid Cu-Ti binary alloys measured by electromagnetic levitation and thermodynamic modelling

► Cu-Ti liquid alloys samples levitated and melted in the EML set-up. ► Surface tension of the Cu-Ti is measured for the entire composition range. ► Surface tension vs. temperature described by linear function with negative slope. ► Surface segregation calculated by the QCA and CFM thermodynamic models. ► Experimental results on Cu-Ti melts in agreement with modelling.