Continuum percolation and depletion flocculation
Soga, K. Geoffrey, Melrose, John R. and Ball, Robin. (1998) Continuum percolation and depletion flocculation. The Journal of Chemical Physics, Vol.108 (No.14). pp. 6026-6032. ISSN 0021-9606Full text not available from this repository.
Official URL: http://dx.doi.org/10.1063/1.476015
Using Brownian dynamics simulations, we investigate continuum percolation in a system of colloid particles aggregating due to depletion flocculation. For all values of aggregating potential, there is a lower threshold volume fraction of colloid particles at which a percolating cluster appears. This threshold defines a percolation “phase” boundary that crosses the phase boundary between the colloid fluid phase and colloid fluid+crystal coexistence. In the two-phase coexistence regime, the lifetime of percolated clusters increases dramatically, and therefore the percolation threshold may be related to a transient gel threshold reported from experiment. In the phase coexistence regime, there is evidence of aging due to the thermal restructuring of clusters, implying a finite lifetime for percolating structures.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Divisions:||Faculty of Science > Physics|
|Library of Congress Subject Headings (LCSH):||Percolation (Statistical physics), Brownian movements, Flocculation, Colloids|
|Journal or Publication Title:||The Journal of Chemical Physics|
|Publisher:||American Institute of Physics|
|Page Range:||pp. 6026-6032|
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