Solidification kinetics of hard-sphere colloidal suspensions

Sinn, Christian; Heymann, Andreas; Stipp, Andreas; Palberg, Thomas

doi:10.1007/3-540-45725-9_57

Cited by 48 publications

(78 citation statements)

References 48 publications

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“…Note that the polydispersity in Ref. [31] is about 2.5%. As can be seen from the figure, the simulations predict a much stronger dependence of the nucleation rates on density than is observed in the experiments.…”

Section: Hard-sphere Colloidsmentioning

confidence: 92%

“…The experimental realization of a colloidal suspension that closely mimics the phase behavior of hard spheres followed about 20 years later and was a milestone in soft matter physics [28,29]. More recently the phase transition kinetics of hard sphere colloids has been studied extensively in experiments [5,30,31]. However as mentioned in the introduction the interpretation of the data with CNT was rather indirect.…”

Section: Hard-sphere Colloidsmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Simulation of Crystal Nucleation in Colloids

Auer¹,

Frenkel²

2005

Advances in Polymer Science

126

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This article reviews the recent progress that has been made in the application of computer simulations to study crystal nucleation in colloidal systems. We discuss the concept and the numerical methods that allow for a quantitative prediction of crystal nucleation rates. The computed nucleation rates are predicted from first principles and can be directly compared to experiments. These techniques have been applied to study crystal nucleation in hard-sphere colloids, polydisperse hard-sphere colloids, weakly charged or slightly soft colloids and hardsphere colloids that are confined between two plane hard walls.

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Section: Hard-sphere Colloidsmentioning

confidence: 92%

Section: Hard-sphere Colloidsmentioning

confidence: 99%

Numerical Simulation of Crystal Nucleation in Colloids

Auer¹,

Frenkel²

2005

Advances in Polymer Science

126

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“…Colloidal systems have the advantage that both the spatial and temporal evolution can be monitored directly in experiments via light scattering [25][26][27], or in real space via confocal microscopy [20,28], see also Ref. 29 for a review.…”

Section: Introductionmentioning

confidence: 99%

Crystallization in a sheared colloidal suspension

Lander

Seifert

Speck

2013

The Journal of Chemical Physics

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We study numerically the crystallization process in a supersaturated suspension of repulsive colloidal particles driven by simple shear flow. The effect of the shear flow on crystallization is two-fold: while it suppresses the initial nucleation, once a large enough critical nucleus has formed its growth is enhanced by the shear flow. Combining both effects implies an optimal strain rate at which the overall crystallization rate has a maximum. To gain insight into the underlying mechanisms, we employ a discrete state model describing the transitions between the local structural configurations around single particles. We observe a time-scale separation between these transitions and the overall progress of the crystallization allowing for an effective Markovian description. By using this model, we demonstrate that the suppression of nucleation is due to the inhibition of a pre-structured liquid.

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“…4,5 Whereas initially the experimental study of hard-sphere colloids focused on the equilibrium phase behavior, during the past decade the focus has shifted towards the experimental study of the phase transition kinetics of hard-sphere colloids. [6][7][8] Crystallization in colloidal suspensions is interesting because it can be studied in considerable detail. The major problem of experimental investigations of crystallization kinetics in atomic systems is the high speed of nucleus formation and subsequent crystal growth, as well as the difficulty of preventing heterogeneous nucleation.…”

Section: Introductionmentioning

confidence: 99%

Numerical prediction of absolute crystallization rates in hard-sphere colloids

Auer

Frenkel

2004

The Journal of Chemical Physics

344

349

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Special computational techniques are required to compute absolute crystal nucleation rates of colloidal suspensions. Using crystal nucleation of hard-sphere colloids as an example, we describe in some detail the novel computational tools that are needed to perform such calculations. In particular, we focus on the definition of appropriate order parameters that distinguish liquid from crystal, and on techniques to compute the kinetic prefactor that enters in the expression for the nucleation rate. In addition, we discuss the relation between simulation results and theoretical predictions based on classical nucleation theory.

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Solidification kinetics of hard-sphere colloidal suspensions

Cited by 48 publications

References 48 publications

Numerical Simulation of Crystal Nucleation in Colloids

Numerical Simulation of Crystal Nucleation in Colloids

Crystallization in a sheared colloidal suspension

Numerical prediction of absolute crystallization rates in hard-sphere colloids

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