A key element to understand the rheological behavior of suspensions is their microstructure: the spatial distribution of particles depends on flow history, which has an impact on the suspension macroscopic properties. This appeals for the development of experimental tools allowing for the 3D imaging of particles in viscosimetric flows.
At a macroscopic scale, concentrated suspensions often...
We have studied the non-equilibrium dynamics of self-assembled magnetic peanut-shaped colloids in the presence of a magnetic field. The micrometre‐sized particles align in a direction perpendicular to the applied external magnetic field, and assemble into chains along the field direction. The anisotropic dynamics of these particles is investigated using multispeckle ultrasmall‐angle X‐ray...
The microscopic structure and dynamics in colloidal systems at different length-scales, from single to multiple particle level, are probed under shear by a variety of scattering and direct imaging techniques. We present different studies of hard and soft particle glasses and attractive gels of spherical and rod-like colloids, where we link the mechanical response with the underlying particle...