Strain Heterogeneity in Sheared Colloids Revealed by Neutron Scattering
Abstract
Recent computational and theoretical studies have shown that the deformation of colloidal suspensions under a steady shear is highly heterogeneous at the particle level and demonstrate a critical influence on the macroscopic deformation behavior. Despite its relevance to a wide variety of industrial applications of colloidal suspensions, scattering studies focusing on addressing the heterogeneity of the non-equilibrium colloidal structure are scarce thus far. Here, we report the first experimental result using small-angle neutron scattering. From the evolution of strain heterogeneity, we conclude that the shear-induced deformation transforms from nearly affine behavior at low shear rates, to plastic rearrangements when the shear rate is high.
Keywords
Cite
@article{arxiv.1710.05679,
title = {Strain Heterogeneity in Sheared Colloids Revealed by Neutron Scattering},
author = {Kevin Chen and Bin Wu and Guan-Rong Huang and Gaibo Zhang and Yangyang Wang},
journal= {arXiv preprint arXiv:1710.05679},
year = {2018}
}