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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Cohen-Addad, Sylvie
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Topics
Publications (9/9 displayed)
- 2023Hierarchical bubble size distributions in coarsening wet liquid foamscitations
- 2023Hierarchical bubble size distributions in coarsening wet liquid foamscitations
- 2019Elastic behavior of confined soap frothcitations
- 2017Stabilization of foams by the combined effects of an insoluble gas species and gelation citations
- 2014Closed-cell crystalline foams: Self-assembling, resonant metamaterialscitations
- 2013The coupling between foam viscoelasticity and interfacial rheologycitations
- 2010Investigation of shear banding in three-dimensional foamscitations
- 2007Rigidity Percolation in Particle-Laden Foamscitations
- 2005Is the yield stress of aqueous foam a well-defined quantity?citations
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article
The coupling between foam viscoelasticity and interfacial rheology
Abstract
We study the impact of interfacial rheology on the linear viscoelastic relaxations of disordered 3D foams. Their complex shear modulus G(star) = G' + iG `' is measured as a function of frequency, bubble size, liquid viscosity and surface dilatational modulus. We show that for foams with very rigid interfaces the variations of G(star) with frequency f between 1 and 100 Hz deviate from the behavior G(star) similar to root if previously predicted as a generic consequence of topological disorder and observed for foams with mobile or moderately rigid interfaces. Our experiments demonstrate that the relaxations slow down as the bubble size or the foaming liquid viscosity increases. We show under which conditions, depending on the interfacial rigidity, the loss factor G `'/G' can be collapsed on master curves by applying a scale factor to the frequency. The dependence of this scale factor on the bubble size and viscosity constitutes a robust criterion helping to identify the dominant dissipation mechanism.