In situ magnetorheological SANS setup at Institut Laue-Langevin
Dominika Zákutná, K. Graef, Dominique Dresen, Lionel Porcar, Dirk Honecker, Sabrina Disch
Abstract
Abstract 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.