LANDAU THEORY IN KINETICS OF THE CUAU FIRST-ORDER PHASE-TRANSITION

The study of kinetics of the order-disorder phase transition in Cu Au is performed in the framework of the time-dependent Ginzburg-Landau th eory. The analytical solution for the motion parameters of the interph ase boundary is applied to the calculations of width and velocity at d ifferent overheating and overcooling temperatures. We propose a way of verification of validity of the mean-field approach for order-disorde r phase transitions.