Growth dynamics of ore melt drops in a cooling basic melt

A model of nonisothermal formation of dispersed structure in the basic melt experienced the layering is proposed. The model is based on the mechanism of fluctuated nucleation of ore liquid phase and the subsequent nuclei grow th controlled by a diffusion. it has been shown that (1) the size of ore dr ops and the distance between them decreases with the rate of melt cooling; (2) the increase in surface tension at the boundary of liquid phases gives rise to the augmentation of the above parameters and to the acceleration of ore drop growth; however, the relative amount of dispersed phase decreases ; (3) the critical oversaturation DeltaC(max) slightly increases with the r ate of cooling vr and drastically increases with interphase surface tension ; (4) the critical radius R-0 falls down with increase of cooling rate; (5) the distribution of components of layered liquid inside ore drops and near by in the matrix is close to homogeneous; and (6) the final (equilibrium) d imensions of the diffusion-controlled ore drops during their growth and the diffusion cell itself reveal a marked dependence on the interphase surface tension, cooling rate, and diffusion coefficients of ore components in coe xisting liquid phases.