Rheology of aqueous magnetite suspensions in uniform magnetic fields
Date
2005
Authors
Yang X.
Aldrich C.
Journal Title
Journal ISSN
Volume Title
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Abstract
Non-magnetized suspensions of magnetite particles with concentrations in excess of 30% by mass and particle size less than 75 μm exhibit Bingham plastic behaviour. When exposed to external magnetic fields of strengths in excess of 41 × 10-4 T, the rheological behaviour of the suspensions departs from the Bingham model and can be described by a Herschel-Bulkley model of the form τ = τ0 + kγn. The value of the index n was found to range from 0.38 to 0.9, depending on the magnetic field strength, solids concentration and particle size and correlations are proposed for the apparent viscosity of magnetized suspensions as a function of magnetic field strength and solids concentration. © 2005 Elsevier B.V. All rights reserved.
Description
Keywords
Correlation methods, Magnetic fields, Mathematical models, Particle size analysis, Rheology, Viscosity, Bingham models, Magnetic field strength, Magnetite suspensions, Rheological models, Magnetite
Citation
International Journal of Mineral Processing
77
2
77
2