ON THE PARTICLES TRANSPORT BETWEEN EMBEDDED CLUSTERS

Diffusional interactions within the Ostwald Ripening process are analy zed in the present paper. An off-centre diffusion approach is performe d to point out the direct correlation between the size of clusters. He rein the diffusion solution is derived as a function of both the growi ng and shriniking cluster sizes. Also, it is shown that the frequency transfer of particles between the shrinking cluster and the growing on e may acquire high values due to the medium polarization. As a result, the temporal power law of the cluster growth derived in this theoreti cal model differs from that predicted by the LSW theory. Experimental data for Ag clusters embedded in a KCl matrix are analyzed both by the present theory and by the LSW theory.