2-DIMENSIONAL LATE-STAGE COARSENING FOR NUCLEATION AND GROWTH AT HIGH-AREA FRACTIONS

Numerical simulations of two-dimensional late-stage coarsening for nuc leation and growth (Ostwald ripening) are performed at large-area frac tions without shape restrictions. We employ efficient computational me thods that allow us to study large systems. The free energy of the sys tem we consider is composed of two different curves. Thus, the system consists of a set of isolated particles even at high-area fractions. T his is totally different from the interconnected spinodal structures g enerated by the Cahn-Hilliard model, where the free energy is composed of a single curve. Although the domain structures are quite different , we find that the qualitative features of the structure function for both models are the same.