Thermodynamics Research Center / ThermoML | Thermochimica Acta

Thermodynamic properties of liquid silver-gold-gallium alloys determined from EMF measurements with solid YSZ electrolyte

Jendrzejczyk-Handzlik, Dominika
Thermochim. Acta 2018, 662, 126-134
ABSTRACT
The thermodynamic properties of liquid Ag-Au-Ga alloys were determined using solid oxide galvanic cells with zirconia electrolyte: W, AgxAuyGa(1-x-y), Ga2O3//ZrO2+(Y2O3)//FeO, Fe, W(I) in the temperature range from 1023 to 1348K. Measurements were conducted in the ternary Ag-Au-Ga system along three cross-sections specified by the ratio of mole fractions xAg/xAu=1:2, 1:1 and 2:1. Thermodynamic properties of the liquid phase were described with the Redlich-Kister-Muggianu formula. In this description procedure, the heat of mixing determined calorimetrically in the previous work was included. The results of the calculations were compared with the experimental data obtained in this work.
Compounds
# Formula Name
1 Ag silver
2 Au gold
3 Ga gallium
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • 2
  • 3
  • (Relative) activity - 3 ; Liquid
  • Temperature, K; Liquid
  • Solvent: Mole fraction - 1; Liquid
  • Mole fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Calculated from EMF cell potential
  • 60