Hydrodynamic and contact contributions to shear thickening in colloidal suspensions

Abstract

Shear thickening is a widespread phenomenon in suspension flow that, despite sustained study, is still the subject of much debate. The longstanding view that shear thickening is due to hydrodynamic clusters has been challenged by recent theory and simulations suggesting that contact forces dominate, not only in discontinuous, but also in continuous shear thickening. Here, we settle this dispute using shear reversal experiments on micron-sized silica and latex colloidal particles to measure directly the hydrodynamic and contact force contributions to shear thickening. We find that contact forces dominate even continuous shear thickening. Computer simulations show that these forces most likely arise from frictional interactions.

References in corpus (5)

• Shear thickening of cornstarch suspensions as a re-entrant jamming transition
• A unified description of the rheology of hard-particle suspensions
• Macroscopic Discontinuous Shear Thickening vs Local Shear Jamming in Cornstarch
• Flow regime transitions in dense non-Brownian suspensions: rheology, microstructural characterisation and constitutive modelling
• Shear thickening of highly viscous granular suspensions

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• Discontinuous shear thickening of dense suspensions under confining pressure
• Stress fluctuations and shear thickening in dense granular suspensions
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• Shear-thickening in presence of adhesive contact forces: the singularity of cornstarch
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