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Article Dans Une Revue Journal of Chemical Physics Année : 2010

Slow dynamics of a colloidal lamellar phase

Résumé

We used x-ray photon correlation spectroscopy to study the dynamics in the lamellar phase of a platelet suspension as a function of the particle concentration. We measured the collective diffusion coefficient along the director of the phase, over length scales down to the interparticle distance, and quantified the hydrodynamic interaction between the particles. This interaction sets in with increasing concentration and can be described qualitatively by a simplified model. No change in the microscopic structure or dynamics is observed at the transition between the fluid and the gel-like lamellar phases.
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Dates et versions

hal-00546905 , version 1 (15-12-2010)

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Doru Constantin, Patrick Davidson, Eric Freyssingeas, Anders Madsen. Slow dynamics of a colloidal lamellar phase. Journal of Chemical Physics, 2010, 133 (22), pp.224902. ⟨10.1063/1.3509399⟩. ⟨hal-00546905⟩
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