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Article Dans Une Revue Soft Matter Année : 2018

Flow and fracture near the sol–gel transition of silica nanoparticle suspensions

Résumé

We analyze the evolution of the mechanical response of a colloidal suspension to an external tensile stress, from fracture to flow, as a function of the distance from the sol-gel transition. We cease to observe cracks at a finite distance from the transition. In an intermediate region where the phenomenon is clearly hysteretic, we observe the coexistence of both flow and fracture. Even when cracks are observed, the material in fact flows over a distance that increases in the vicinity of the transition.

Dates et versions

cea-04485459 , version 1 (01-03-2024)

Identifiants

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Gustavo Gimenes, Elisabeth Bouchaud. Flow and fracture near the sol–gel transition of silica nanoparticle suspensions. Soft Matter, 2018, 14 (39), pp.8036-8043. ⟨10.1039/c8sm01247d⟩. ⟨cea-04485459⟩
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