Modelling the Liquid Behaviour of Ionic Liquids

Abstract

There currently exist a number of theoretical works on the study of contact melting, and the ionic liquids formed by this method. It is possible to select several directions from these studies. One of them is a study of the kinetics of growth of the fluid area in binary systems. Considering a pair of regular displacement boundaries, 1 and 2, a fluid phase forms under the conditions of contact melting, controlled by the kinetics of the diffusion process. Let the value of the concentration for the material of type B between the boundaries for the liquid phase be and for the solid phase be. During the period of time dt, the diffusion flow J _L1 from the melt to the boundary allows the passage of Sdt atoms of B, where S is the area of the interface. In the same time period, the diffusion flow J _s1 to the boundary in the solid phase allows the passage Sdt atoms of B. If the quasiequation, and, do not change during the process, the difference (J _L1—J _s1) must be created in the volume element Sd/₁ at the boundary, and the difference of material B must equal During the time period dt, the boundary will move a distance d/₁. Thus: Using Fick’s first law: where f ₁(t) is a function of time. Expanding the terms from equation where α₁ and b₁ are time-independent parameters.

Kabardino-Balkarian State University, Nalchik, Kabardino-Balka