Thermodynamic properties of liquid alloys of the Ni-Hf system

A first-principles based description of the Hf-Ni system supported by high-temperature synchrotron experiments

“…This is why partial enthalpy calculations by Podoprigora et al. [20] and Sudavtsova et al [21] disagree with the present model and why experimental partial enthalpies agree well for low Hf concentration in the liquid.…”

“…T (K) 1123 [7] 1173 [7] 1173 . Thermochemical calculations in the liquid phase: a) the molar enthalpy of mixing at 1770 K compared to experiments by Podoprigora and Sudavtsova [19], [20] at 1770 K ( ) and Sudavtsova [21] at 1877 K ( ) and thesis work cited by Podoprigora and Sudavtsova [19], [20] ( ) b) calculated partial molar enthalpy of mixing compared to Podoprigora and Sudavtsova at 1770 K [19], [20] ( ) and c) calculated molar enthalpy of mixing (*with respect to solid hcp Hf and liquid Ni) at 1743 K compared to data by Selhaoui [13] at this temperature ( ) Figure 7. Hf-Ni phase diagram from 300 to 3000 K plotted with DTA data by Svechnikov et al [11]( ) DTA data, two phase observations, and single phase observations by Yeremenko [18] ( , , and respectively) and solubility measurements by Wang et al [7] ( ) solubility measurements by Hajjaji et al [10] ( ) and solubility measurements from this work ( ).…”

“…The most recent thermochemical investigation into the liquid phase was carried out by Popoprigora et al [19], [20] on Hf-Ni melts at 1770 ±5 K using calorimetry. Earlier calorimetry measurements were also carried out by Selhaoui et al [13] at 1473 and 1633 K, and by Sudavtsova and Sharkina [21] at 1877 K.…”