Surface tension and density of liquid Sn-Ag alloys

The surface tension and density measurements for Sn-Ag alloys were carried out with the sessile drop method. Seven different compositions were investigated in the range from 0.011 to 0.5 mole fraction of Ag, in a broad range of temperature. With increasing concentrations of Ag, both density and the surface tension are increased. With increasing temperature the density decreases for all of the alloys. A decrease of the surface tension is observed for most of the composition except for the alloy of 0.5 mole fractions of Ag. The obtained results are compared with existing literature data and Butler model calculations and relatively good agreement is observed.

Research highlights▶ Surface tension and density show linear dependence on temperature. ▶ Molar volume shows close to a linear change with composition. ▶ Measured data agree relatively well with results of Butler model calculations. ▶ Present results are in agreement with the data of earlier studies.