Artículo
Jamming Threshold of Dry Fine Powders
Autor/es | Valverde Millán, José Manuel
Sánchez Quintanilla, Miguel Angel Castellanos Mata, Antonio |
Departamento | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo |
Fecha de publicación | 2004 |
Fecha de depósito | 2015-07-16 |
Publicado en |
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Resumen | We report a novel experimental study on the jamming transition of dry fine powders with controlled attractive energy and particle size. Like in attractive colloids dry fine particles experience diffusionlimited clustering ... We report a novel experimental study on the jamming transition of dry fine powders with controlled attractive energy and particle size. Like in attractive colloids dry fine particles experience diffusionlimited clustering in the fluidlike regime. At the jamming threshold fractal clusters crowd in a metastable state at volume fractions depending on attractive energy and close to the volume fraction of hard nonattractive spheres at jamming. Near the phase transition the stress-(volume fraction) relationship can be fitted to a critical-like functional form for a small range of applied stresses J) as measured on foams, emulsions, and colloidal systems and predicted by numerical simulations on hard spheres. |
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