Phase separation dynamics of polydisperse colloids: a mean-field lattice-gas theory
نویسندگان
چکیده
منابع مشابه
Phase Equilibria of Polydisperse Colloids
A set of colloidal particles (be they sterically-or charge-stabilized) can never be made truly identical. They are polydisperse in their sizes (or charges), and their interactions are a function of that property. A truly polydisperse system in the thermodynamic limit contains innnitely many species. Therefore, calculations of phase equilibria involve innnitely many coexistence constraints (a di...
متن کاملNoise-induced phase separation: mean-field results.
We present a study of a phase-separation process induced by the presence of spatially correlated multiplicative noise. We develop a mean-field approach suitable for conserved-order-parameter systems and use it to obtain the phase diagram of the model. Mean-field results are compared with numerical simulations of the complete model in two dimensions. Additionally, a comparison between the noise-...
متن کاملPhase separation of a multiple occupancy lattice gas
A binary lattice gas model that allows for multiple occupancy of lattice sites, inspired by recent coarse-grained descriptions of solutions of interacting polymers, is investigated by combining the steepest descent approximation with an exploration of the multidimensional energy landscape and by Gibbs ensemble Monte Carlo simulations. The one-component version of the model, involving on site an...
متن کاملMean field kinetic theory for a lattice gas model of fluids confined in porous materials.
We consider the mean field kinetic equations describing the relaxation dynamics of a lattice model of a fluid confined in a porous material. The dynamical theory embodied in these equations can be viewed as a mean field approximation to a Kawasaki dynamics Monte Carlo simulation of the system, as a theory of diffusion, or as a dynamical density functional theory. The solutions of the kinetic eq...
متن کاملNon-equilibrium phase transitions in lattice systems with random-field competing kinetics: mean-field theory
AbslracL The study by kinetic mean-field techniques of a ddimensional king system characterized by a sort of dpomicol &order reveals a rich phase diagram which exhibils a non-equilibrium lricnlical paint (only) for d > 2, and re-entrance phenomena. The system time evolution is stochastic due to the simultaneous action of wera l independent spin-flip mechanisms, each cot’responding to a differen...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Chemistry Chemical Physics
سال: 2017
ISSN: 1463-9076,1463-9084
DOI: 10.1039/c7cp04062h