Partial and integral enthalpies of mixing in the liquid Ag–In–Sn–Zn quaternary alloys

• Results of partial enthalpies of mixing of silver in the liquid Ag–In–Sn–Zn alloys.
• Experimental integral enthalpies of mixing in the liquid Ag–In–Sn–Zn alloys.
• Calculated integral enthalpies of mixing in the liquid Ag–In–Sn–Zn alloys.
• Comparison between the measured and the calculated values.

The partial and integral enthalpies of mixing of liquid quaternary Ag–In–Sn–Zn alloys have been measured at 500 °C along seven ternary sections: In0.450Sn0.450Zn0.100, In0.375Sn0.375Zn0.250, In0.333Sn0.333Zn0.334, In0.225Sn0.550Zn0.225, In0.100Sn0.800Zn0.100, In0.550Sn0.225Zn0.225 and In0.800Sn0.100Zn0.100. The measurements were carried out using a Calvet-type microcalorimeter and drop calorimetric technique. Additionally, the enthalpies of mixing of the liquid Ag–In–Sn–Zn have been calculated using the traditional Kohler, Muggianu, Toop and Hillert geometric models and compared to the experimental one.