Tunable shear thickening in suspensions

Author:

Lin Neil Y.C.,Ness Christopher,Cates Michael E.,Sun Jin,Cohen Itai

Abstract

Shear thickening, an increase of viscosity with shear rate, is a ubiquitous phenomenon in suspended materials that has implications for broad technological applications. Controlling this thickening behavior remains a major challenge and has led to empirical strategies ranging from altering the particle surfaces and shape to modifying the solvent properties. However, none of these methods allows for tuning of flow properties during shear itself. Here, we demonstrate that by strategic imposition of a high-frequency and low-amplitude shear perturbation orthogonal to the primary shearing flow, we can largely eradicate shear thickening. The orthogonal shear effectively becomes a regulator for controlling thickening in the suspension, allowing the viscosity to be reduced by up to 2 decades on demand. In a separate setup, we show that such effects can be induced by simply agitating the sample transversely to the primary shear direction. Overall, the ability of in situ manipulation of shear thickening paves a route toward creating materials whose mechanical properties can be controlled.

Funder

National Science Foundation

Engineering and Physical Sciences Research Council

Royal Society

Publisher

Proceedings of the National Academy of Sciences

Subject

Multidisciplinary

Reference39 articles.

1. Shear thickening in colloidal dispersions;Wagner;Phys Today,2009

2. Towards a Unified Description of the Rheology of Hard-Particle Suspensions

3. Wagner NJ Wetzel ED (2007) US Patent 7,226,878.

4. Cwalina CD (2016) Shear thickening fluids for enhanced protection from micrometeoroids and orbital debris. PhD thesis (University of Delaware, Newark).

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