Shear banding phenomena in a Laponite suspension

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dc.creatorIanni, F.
dc.creatorDi Leonardo, R.
dc.creatorGentilini, S.
dc.creatorRuocco, G.
dc.date2007-05-31
dc.date.accessioned2026-07-07T08:03:44Z
dc.date.available2026-07-07T08:03:44Z
dc.descriptionShear localization in an aqueous clay suspension of Laponite is investigated through dynamic light scattering, which provides access both to the dynamics of the system (homodyne mode) and to the local velocity profile (heterodyne mode). When the shear bands form, a relaxation of the dynamics typical of a gel phase is observed in the unsheared band soon after flow stop, suggesting that an arrested dynamics is present during the shear localization regime. Periodic oscillations of the flow behavior, typical of a stick-slip phenomenon, are also observed when shear localization occurs. Both results are discussed in the light of various theoretical models for soft glassy materials.
dc.description5 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0705.4596
dc.identifierhttp://arxiv.org/abs/0705.4596
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/129686
dc.subjectFluid Dynamics
dc.titleShear banding phenomena in a Laponite suspension
dc.typetext

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