Journal
COLLOID AND POLYMER SCIENCE
Volume 299, Issue 2, Pages 281-288Publisher
SPRINGER
DOI: 10.1007/s00396-020-04713-5
Keywords
Small-angle neutron scattering; Magnetorheology; Rheology; Magnetoviscous effect; Magnetic nanoparticles
Categories
Funding
- Projekt DEAL
- Deutsche Forschungsgemeinschaft (DFG) [DI 1788/2-1]
- Institut Laue-Langevin
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The magnetorheological sample environment allows for simultaneous control of magnetic field and shear flow during measurements, enabling the study of structural and magnetic changes in ferrofluids.
A magnetorheological sample environment is presented that allows for in situ magnetic field and shear flow during small-angle neutron scattering (SANS) measurements and is now available at the Institut Laue-Langevin (ILL). The setup allows performing simultaneous magnetorheological measurements together with the investigation of structural and magnetic changes on the nanometer length scale underlying the rheological response of ferrofluids. We describe the setup consisting of a commercial rheometer and a custom-made set of Helmholtz coils and show exemplarily data on the field and shear flow alignment of a dispersion of hematite nanospindles in water.
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