Abstract
Elementary steps in particle—bubble attachment interaction are critically analysed. Three elementary steps are of great importance: (1) thinning of the intervening liquid film to a thickness of film rupture (critical thickness); (2) rupture of the intervening liquid film and formation of a three-phase contact nucleus (a hole of a critical wetting radius); and (3) expansion of three-phase contact line from the critical radius to form a stable wetting perimeter. Some preliminary theoretical and experimental results are presented.
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