Thermodynamics Research Center / ThermoML | International Journal of Thermophysics

A Novel Vibrating Finger Viscometer for High-Temperature Measurements in Liquid Metals and Alloys

Dubberstein, T., Schurmann, M., Chaves, H., Heller, H.-P., Aneziris, C. G.
Int. J. Thermophys. 2016, 37, 10, 100
ABSTRACT
A novel vibrating finger viscometer for high-temperature measurement in liquid metals and alloys up to 1823 K was constructed. The dynamic viscosity ( A) of the liquid fluid is measured as a product of ( I E A)0.5 and the relative change of the field coil input for a constant amplitude recording at the resonant frequency of the oscillator. The viscometer was calibrated at 298 K using reference silicon oils with varying kinematic viscosities ( E), (0.79 to 200) ~10.6 m2 E s.1. In the present study, the viscosity of liquid gold (99.99% Au), silver (99.9% Ag), and tin (99.9% Sn) was measured. The viscosities expressed as an Arrhenius function of temperature are: for Au: ln A = -0.1990 + 2669/T for Ag: ln A = -0.4631 + 2089/T for Sn: ln A = -0.5472 + 671/T
Compounds
# Formula Name
1 Au gold
2 Ag silver
3 Sn tin
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
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Vibrating wire viscometry
  • 7
  • POMD
  • 2
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Vibrating wire viscometry
  • 9
  • POMD
  • 3
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Vibrating wire viscometry
  • 3