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Journal Articles Soft Matter Year : 2020

Interparticle attraction controls flow heterogeneity in calcite gels

Abstract

We couple rheometry and ultrasonic velocimetry to study experimentally the flow behavior of gels of colloidal calcite particles dispersed in water, while tuning the strength of the interparticle attraction through physico-chemistry. We unveil, for the first time in a colloidal gel, a direct connection between attractive interactions and the occurrence of shear bands, as well as stress fluctuations. This generalizes previous results on dense, jammed systems like emulsions
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Dates and versions

hal-02974117 , version 1 (21-10-2020)

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Teresa Liberto, Marie Le Merrer, Sébastien Manneville, Catherine Barentin. Interparticle attraction controls flow heterogeneity in calcite gels. Soft Matter, 2020, 16 (40), pp.9217-9229. ⟨10.1039/D0SM01079K⟩. ⟨hal-02974117⟩
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