Using an approximate analytical solution of the Cahn-Hilliard equation describing the coalescence during a first order phase transition, we compute the characteristic time for one step of period doubling in Langer's self similar scenario for Ostwald ripening. As an application, we compute the thermodynamically stable period of a 1D modulated phase pattern.

The evolution of the nanoporous structure cylindrical sintered silver samples during high temperature aging, ranging from 200 {\textdegree}C to 350 for min, is studied through in-situ Computed X-Ray Tomography. Investigations were performed two types specimens: pure and 2 specimens containing a silver-copper interface. It shown that overall pore driven by very few large ones. smaller pores, alt...

An Ag(2)ZnGeO(4) photocatalyst was fabricated by ion-exchange reaction between amorphous Zn(2)GeO(4) suspension and Ag(+) solutions. The Ostwald ripening effect induced the formation of hierarchical hollow spheres. Compared with the reference bulk Ag(2)ZnGeO(4), the hierarchical Ag(2)ZnGeO(4) hollow spheres showed enhanced photocatalytic activity.

Uniform CuO hollow microspheres were successfully achieved from a non-uniform metal organic framework by using a template-free method. The process mechanism has been revealed to be spherical aggregation and Ostwald ripening. When tested in CO oxidation and heat treatment, these assembled microspheres exhibited an excellent catalytic performance and show a much better stability than the inherite...

In contrast to an expected Ostwald-like ripening of amyloid assemblies, the nucleating core of the Dutch mutant of the Aβ peptide of Alzheimer's disease assembles through a series of conformational transitions. Structural characterization of the intermediate assemblies by isotope-edited IR and solid-state NMR reveals unexpected strand orientation intermediates and suggests new nucleation mechan...