Title :
Magnetic Field Assisted Fractionation of Nonmagnetic Colloids in Ferrofluid
Author :
Halverson, D. ; Friedman, G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA
fDate :
6/1/2007 12:00:00 AM
Abstract :
Flocculation of nonmagnetic colloidal particles in ferrofluid while in the presence of an external uniform magnetic field is investigated experimentally. Magnetic nanoparticles in ferrofluid create magnetic interactions between nonmagnetic colloidal particles. It is demonstrated that nonmagnetic particles can be fractionated by size much more efficiently in the presence of these magnetic interactions
Keywords :
exchange interactions (electron); flocculation; magnetic fluids; magnetic particles; magnetic separation; ferrofluid; flocculation; magnetic field assisted fractionation; magnetic interactions; magnetic nanoparticles; nonmagnetic colloidal particles; nonmagnetic colloids; Fractionation; Magnetic fields; Magnetic levitation; Magnetic liquids; Magnetic separation; Material properties; Nanoparticles; Potential energy; Size control; Sorting; Fractionation; magnetic separation; magnetic sorting;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2007.893633
