Phase Diagram of Colloidal Solutions.
نویسندگان
چکیده
The phase diagram of globular colloids is studied using a combined analytic and computational representation of the relevant chemical potentials. It is shown how the relative positions of the phase boundaries are related to the range of interaction and the number of contacts made per particle in the solid phase. The theory presented successfully describes the features of the phase diagrams observed in a wide variety of colloidal systems. [S0031-9007(96)01805-4]
منابع مشابه
"Sticky" hard spheres: equation of state, phase diagram, and metastable gels.
A large variety of engaging phenomena, ranging from crystallization in protein solutions to the formation of colloidal gels and glasses via depletion forces, stems from the occurrence of very short-ranged attractive forces. From depolarized light scattering measurements of equilibrium sedimentation profiles, we obtain an accurate description of the equation of state and of the phase diagram of ...
متن کاملPhase coexistence in polydisperse mixture of hard-sphere colloidal and flexible chain particles
Abstract. A theoretical scheme for the calculation of the full phase diagram (including cloud and shadow curves, binodals and distribution functions of the coexisting phases) for colloidpolymer mixtures with polymer chain length polydispersity and hard-sphere colloidal and polymeric monomer sizes polydispersity is proposed. The scheme combines thermodynamic perturbation theory for associating f...
متن کاملNonlinear microrheology of dense colloidal suspensions: A mode-coupling theory
A mode-coupling theory for the motion of a strongly forced probe particle in a dense colloidal suspension is presented. Starting point is the Smoluchowski equation forN bath and a single probe particle. The probe performs Brownian motion under the influence of a strong constant and uniform external forceFex. It is immersed in a dense homogeneous bath of (different) particles also performing Bro...
متن کاملOptical Studies of the Structure and Dynamics of Opaque Colloids
Three fundamental experiments on multi-particle interactions in hard-sphere systems are presented in this thesis. In the first experiment, a mixture of two monodisperse colloids with different particle diameters, but the same particle composition, is studied using diffusing-wave spectroscopy. We find that both the particle structure and the hydrodynamic interactions between large and small ball...
متن کاملPhase behaviour of a model of colloidal particles with a fluctuating internal state
Colloidal particles are not simple rigid particles, in general an isolated particle is a system with many degrees of freedom in its own right, e.g., the counterions around a charged colloidal particle. The behaviour of model colloidal particles, with a simple phenomenological model to account for these degrees of freedom, is studied. It is found that the interaction between the particles is not...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Physical review letters
دوره 77 23 شماره
صفحات -
تاریخ انتشار 1996