The buckling and invagination process during consolidation of colloidal droplets

• DOI: 10.1039/c2sm26530c
• Publication Date: 2012-11-08T11:30:10Z
• Authors: F. Boulogne; F. Giorgiutti-Dau...; L. Pauchard
• Keywords: Consolidation

Drying a droplet of colloidal dispersion can result in complex pattern formation due to both development and deformation skin at the drop surface. The present study focus on drying process droplets dispersions confined geometry where direct observations thickness are allowed. During drying, buckling is followed by single depression growth inside drop. found be generic studied for various dispersions. final shape partly explained simple energy analysis based competition between bending stretching deformations. Particularly, enables us determine precisely critical shell buckling. This allow validate theory 2D apply it case 3D not accessible observation.