Note: Temperature derivative of the refractive index of binary mixtures measured by using a new thermodiffusion cell

Fabrizio Croccolo (1, 2) , Frédéric Plantier (1) , Guillaume Galliero (1) , Gilles Pijaudier-Cabot (1) , M.Z. Saghir (3) , F. Dubois (4) , S. van Vaerenberth (4) , François Montel (5) , Henri Bataller (1)

1 LFCR - Laboratoire des Fluides Complexes et leurs Réservoirs
2 Physics Department
3 Ryerson University [Toronto]
4 Microgravity Research Center
5 CSTJF - Centre scientifique et Technique Jean Feger

A thermodiffusion cell is developed for performing Soret experiments on binary mixtures at high pressure and in the presence of a porous medium. The cell is validated by performing experiments at atmospheric pressure. The experiments are performed by applying different temperature gradients to binary mixtures in order to determine their thermal contrast factor. These measurements provide a first demonstration of the good reproducibility of this kind of measurements upon calibration.

Mots clés: High pressure; Porous medium; Reproducibilities; Temperature derivatives; Thermal contrasts; Thermodiffusion Engineering controlled terms: Atmospheric pressure; Cells; Experiments; Porous materials; Refractive index; Thermal diffusion in liquids Engineering main heading: Binary mixtures

Domaines: Chimie-Physique [physics.chem-ph]

Fabrizio Croccolo, Frédéric Plantier, Guillaume Galliero, Gilles Pijaudier-Cabot, M.Z. Saghir, et al.. Note: Temperature derivative of the refractive index of binary mixtures measured by using a new thermodiffusion cell. Review of Scientific Instruments, 2011, 82 (12), pp.Article number 126105. ⟨10.1063/1.3662413⟩. ⟨hal-00683966⟩