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A rheometer for the investigation of structure formation in ferrofluids under magnetic field and shear flow
- J. Hilljegerdes
- S. Odenbach
ZARM, University of Bremen, Am Fallturm, 28359 Bremen, Germany
Magnetohydrodynamics 39, No. 1, 91-96, 2003 [PDF, 0.24 Mb]
Due to the possibility to change their physical properties, especially their viscosity, under magnetic fields, ferrofluids are a challenging subject for engineering, fundamental research and medicine. Experimental and theoretical studies have shown that modifications of the microstructure of ferrofluids in the presence of a magnetic field have significant influence on the magnetoviscous properties. To obtain information on the structure formation, a rheometer for Small Angle Neutron Scattering (SANS) investigations of the behaviour of ferrofluids under the shear flow and the influence of a magnetic field strength was designed. Figs 6, Refs 7.