6533b851fe1ef96bd12a95eb

RESEARCH PRODUCT

Thermoosmotic transfer of sterically stabilized ferrofluid particles in non-isothermal capillary porous layer

M MaiorovGunars KronkalnsAnsis MezulisElmars Blums

subject

FerrofluidMaterials scienceChemical engineeringCapillary actionParticleNanoparticleequipment and suppliesCondensed Matter PhysicsPorous mediumThermal diffusivityLayer (electronics)Isothermal processElectronic Optical and Magnetic Materials

description

Experiments on thermodiffusive transfer of ferrofluid nanoparticles in capillary porous layer are presented. The layer consists of a number of capillary filter sheets pressed between two plates of different temperatures. Steady profiles of particle concentration are detected after the experiment from magnetization of each filter sheet. It is shown that particle separation in porous layer is remarkably influenced by thermoosmotic forces. The observed effect is different for colloids of various surfactants and of various carrier liquids.

yearjournalcountryeditionlanguage
2005-03-01Journal of Magnetism and Magnetic Materials
https://doi.org/10.1016/j.jmmm.2004.11.078