Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Enthalpy of mixing of liquid Ni-Ti-Zr alloys at 1873 K

Agraval, P.[Pavel], Dreval, L.[Liya], Turchanin, M.[Mikhail], Storchak-Fedyuk, A.[Anastasia], Artyukh, L.[Ludmila], Velikanova, T.[Tamara]
J. Chem. Thermodyn. 2017, 106, 309-316
ABSTRACT
The enthalpies of mixing of liquid Ni Ti Zr alloys were determined at 1873 K by means of a hightemperature isoperibolic calorimeter. The investigations were performed along sections xNi/xTi = 4/1 and xNi/xZr = 4/1 in the corresponding composition ranges xZr = 0 0.41 and xTi = 0 0.48. The limiting partial enthalpy of mixing of undercooled liquid zirconium in liquid Ni Ti alloy is ( 192 +- 8) kJ mol 1. The limiting partial enthalpy of mixing of undercooled liquid titanium in liquid Ni Zr alloy is ( 130 +- 12) kJ mol 1. The integral mixing enthalpies are negative over the investigated composition range. An analytical expression for the representation of the integral mixing enthalpy was obtained and used for the calculation of the function in the whole composition range.
Compounds
# Formula Name
1 Ni nickel
2 Ti titanium
3 Zr zirconium
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
  • Partial molar enthalpy, kJ/mol - 3 ; Liquid
  • Mole fraction - 3; Liquid
  • Solvent: Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Isoperibol calorimeter
  • 42
  • POMD
  • 1
  • 2
  • 3
  • Partial molar enthalpy, kJ/mol - 2 ; Liquid
  • Mole fraction - 2; Liquid
  • Solvent: Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Isoperibol calorimeter
  • 41