Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2006-09-11
Phys Rev E vol.74 (2006) 061401
Physics
Condensed Matter
Soft Condensed Matter
16 pages 7 figures
Scientific paper
10.1103/PhysRevE.74.061401
We computed the self-organisation process of a monodisperse collection of spherical micrometric particles trapped in a two-dimensional (2D) thin liquid film isothermally dried on a chemically inert substrate. The substrate is either flat or indented to create linear stripes on its surface. The numerical results are illustrated and discussed in the light of experimental ones obtained from the drying of diamond particles water based suspension ($d_{50} = 10 \mu m$) on a glass substrate. The drying of the suspension on a flat substrate leads to the formation of linear patterns and small clusters of micrometric particles distributed over the whole surface of the substrate, whereas the drying of the suspension on a indented substrate leads to the aggregation of the particles along one side of the stripe which has a higher roughness than the other side of the stripe. This is an easy experimental way to obtain colloidal selforganized patterns.
Lallet F.
Olivi-Tran Nathalie
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