Article Dans Une Revue Physical Review Letters Année : 2007

Rigidity Percolation in Particle-Laden Foams

Résumé

We study the viscoelastic behavior of aqueous foam mixed with solid noncolloidal particles. We show that adding a tiny amount of grains can enhance the elastic and loss shear moduli by more than 1 order of magnitude. The scaling of these moduli with solid volume fraction is in qualitative agreement with that predicted by an effective-medium rigidity percolation model. We present a simple model, based on capillary attraction, to explain the particle-size dependence of the threshold.

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Dates et versions

hal-00347980 , version 1 (17-12-2008)

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Sylvie Cohen-Addad, Marcel Krzan, Reinhard Höhler, Benjamin Herzhaft. Rigidity Percolation in Particle-Laden Foams. Physical Review Letters, 2007, 99, pp.168001. ⟨10.1103/PhysRevLett.99.168001⟩. ⟨hal-00347980⟩
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