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Updated: Aug 9, 2026
Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering
Published on: February 6, 2014
Spatially resolved small-angle neutron scattering in the 1-2 plane: a study of shear-induced phase-separating
Matthew W Liberatore1, Florian Nettesheim, Norman J Wagner
1Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716, USA.
Abstract:
The shear-induced microstructure of a shear-induced phase separating (SIPS) wormlike micellar solution is measured by combining small-angle neutron scattering with a shear cell capable of gap-resolved measurement in the 1-2 (velocity-velocity gradient) plane. Quantitative results show evidence for shear-induced microphase separation accompanied by shear banding. The results suggest both concentration fluctuations and gradients in segmental alignment occurring during SIPS.
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