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Rheologica Acta

Erschienen in:

01.11.2004 | Original Contribution

Inhomogeneous flows in sheared complex fluids

verfasst von: Sébastien Manneville, Jean-Baptiste Salmon, Lydiane Bécu, Annie Colin, François Molino

Erschienen in: Rheologica Acta | Ausgabe 5/2004

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Abstract

Using dynamic light scattering in heterodyne mode, we measure velocity profiles in two complex fluids known to exhibit stress plateau behaviour under shear: a wormlike micelle solution and a lamellar phase. In both cases, our data provide evidence for the simplest shear-banding scenario, according to which the effective viscosity drop in the system is due to the nucleation and growth of a highly sheared band in the gap. We point out that the position of the interface between the two structures is stable at a fixed local shear stress σ*.

Vorheriger Artikel Special issue: Annual European Rheology Conference 2003

Nächster Artikel Co-continuity interval in immiscible polymer blends by dynamic mechanical spectroscopy in the molten and solid state

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Titel: Inhomogeneous flows in sheared complex fluids
verfasst von: Sébastien Manneville
Jean-Baptiste Salmon
Lydiane Bécu
Annie Colin
François Molino
Publikationsdatum: 01.11.2004
Verlag: Springer-Verlag
Erschienen in: Rheologica Acta / Ausgabe 5/2004
Print ISSN: 0035-4511
Elektronische ISSN: 1435-1528
DOI: https://doi.org/10.1007/s00397-004-0366-7

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