Abstract
Ferrofluids are described as new magnetic materials. They can also be characterized as isotropic and presenting a superparamagnetic behavior. The viscosity of a ferrofluid behaves like the viscosity of a non-magnetic colloidal solutions, moreover, it depend on the size and direction of the magnetic field applied upon it.
Cuvinte cheie
ferrofluids
viscosity
magnetic materials
viscoscope
gradient velocity