Simulation of structure formation in the process of directional crystallization of LaB₆—ZrB₂

Abstract

Computer simulations of directional solidification of boride-boride ceramics LaB₆— ZrB₂ have been performed on the basis of the standard version of the phase-field theory. The simulations reproduce the basic properties of the fiber structures observed in experiments, — the spatial segregation of components, formation of colonies and the dependence of the spatial structure parameter on the velocity of directional crystallization.