New transport properties of ferrocolloids: magnetic Soret effect and thermomagnetoosmosis

6533b7d3fe1ef96bd1260852

RESEARCH PRODUCT

New transport properties of ferrocolloids: magnetic Soret effect and thermomagnetoosmosis

subject

Convection Ferrofluid Materials science Condensed matter physics Mass transfer Thermal Thermodynamics Magnetic nanoparticles Diffusion (business)Condensed Matter Physics Thermophoresis Electronic Optical and Magnetic Materials Magnetic field

description

The paper deals with critical analysis of experiments on thermodiffusion in ferrocolloids. The observed magnetic Soret effect is significantly stronger than that predicted theoretically. It is shown that the main reason for that is the influence of a magnetic field on mass diffusion. Besides, some measurements are effected by uncontrolled thermal and solutal magnetic convection. Even in porous media, when macroscopic convection is depressed, thermodiffusion can be disturbed by microconvective mass transfer induced by particle magnetophoresis on filter grains.

year	journal	country	edition	language
2005-03-01	Journal of Magnetism and Magnetic Materials

https://doi.org/10.1016/j.jmmm.2004.11.070

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