Citation:
Z. Libor, S.A. Wilson and Q. Zhang. Rheological properties of magnetic and electro-active nanoparticles in non-polar liquids. Journal of Materials Science, 2011, Volume 46, Number 16, 5385-5393
Abstract:
The rheological properties of two non-polar liquids [silicone oil or
perfluorinated oil (FC70)] containing various types of particles, barium
titanate, nickel and iron oxide, were investigated as functions of solid
loading, particle size and shear rate. All the particles were synthesised in-
house. The viscosities of either silicone oil or FC70 containing different solid
loadings (10, 20 and 30 g/L) were measured over the shear rate range of 0.10-10
s(-1). All the nanofluids showed shear-thinning behaviour within this range and
the viscosities increased with the increase of concentrations of nanoparticle
and with the decrease of particle size. The highest increase of viscosity was
found to be caused by nickel particles in silicone oil due to the formation of
Ni network.
