Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Crystal-liquid interfacial free energy and thermophysical properties of pure liquid Ti using electrostatic levitation: Hypercooling limit, specific heat, total hemispherical emissivity, density, and interfacial free energy

Lee, G. W.[Geun Woo], Jeon, S.[Sangho], Park, C.[Cheolmin], Kang, D.-H.[Dong-Hee]
J. Chem. Thermodyn. 2013, 63, 1-6
ABSTRACT
Thermophysical properties of liquid Ti are measured by a newly developed electrostatic levitation. In this study, we measure a hypercooling limit (DThyp), specific heat (Cp), total hemispherical emissivity (eT), and density (q) of liquid Ti. The DThyp of the liquid Ti is 341 K. The Cp of the liquid Ti shows very weak temperature dependence during supercooling. The eT and q of the liquid Ti are given by 0.329 and q(T) (g/cm3) = (4.16 - 2.36).10-4 (T Tm). Finally, the interfacial free energy is estimated with the measured thermophysical parameters. The interfacial free energy is 0.164 J/m2, and Turnbull s coefficient is 0.48.
Compounds
# Formula Name
1 Ti titanium
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
  • Normal melting temperature, K ; Crystal
  • Crystal
  • Liquid
  • Air at 1 atmosphere
  • Heating curve in electrostatic levitation apparatus
  • 1
  • POMD
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Levitation methods
  • 9