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Metastable states and the kinetics of colloid phase separation
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Soga, K. Geoffrey, Melrose, John R. and Ball, Robin (1999) Metastable states and the kinetics of colloid phase separation. The Journal of Chemical Physics, Vol.110 (No.4). p. 2280. doi:10.1063/1.477881
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Official URL: http://dx.doi.org/10.1063/1.477881
Abstract
We report on the results of extensive Brownian dynamics simulations of colloid phase separation due to depletion flocculation. We study in detail the effect of potential variation at fixed volume fraction of colloid and fixed range of interaction. We find a variety of nonequilibrium behaviors for quenches into the colloid fluid+crystal phase coexistence regime. We present clear evidence of metastability, of homogeneous nucleation, and of a kinetically arrested gel state. We also find evidence that suggests a density instability in the metastable colloid fluid preceding crystal nucleation. Our findings are consistent with a previous proposal that nonequilibrium behavior is determined by a metastable vapor+liquid binodal hidden in the fluid+crystal phase coexistence regime
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Divisions: | Faculty of Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Colloids, Phase transformations (Statistical physics), Brownian movements | ||||
| Journal or Publication Title: | The Journal of Chemical Physics | ||||
| Publisher: | American Institute of Physics | ||||
| ISSN: | 0021-9606 | ||||
| Official Date: | 1999 | ||||
| Dates: |
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| Volume: | Vol.110 | ||||
| Number: | No.4 | ||||
| Page Range: | p. 2280 | ||||
| DOI: | 10.1063/1.477881 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published |
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