Distribution kinetics theory of Ostwald ripening

The Theory of Ostwald Ripening

Method for evaluating the Ostwald ripening kinetics of air microbubbles

The stability of foams (and of aerated systems in general) is affected by three basic mechanisms: drainage, Ostwald ripening (also called disproportionation), and coalescence. Ostwald ripening, in particular, refers to the changes in bubble size due to gas diffusion driven by local differences in Laplace pressure, or by gas diffusion to a head space. This process can be strongly influenced by t...

Ostwald ripening pdf

Homoepitaxial Ostwald ripening

This paper reports level set simulations of the Ostwald ripening of two-dimensional homoepitaxial islands. The simulation accurately accounts for both adatom diffusion between the islands and adatom attachment/detachment processes at the island edges. We compute the time evolution of the average island size and the full island size distribution function. The results provide support for a previo...

Part I: Ostwald ripening theories

The physical basis behind the Ostwald ripening process for two-phase mixture has been reviewed in detail, using the various theories developed to describe this process. The Ostwald ripening, also termed second phase coarsening, is generally thought to be slow, diffusion-controlled process which occurs subsequent to phase separation under extremely small under-saturation levels. The major advanc...