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Ostwald ripening in porous materials

By Jürn Schmelzer, Jörg Möller, Vitali V. Slezov, Iwan Gutzow and R. Pascova

Abstract

The process of coarsening of an ensemble of clusters is investigated for the case that elastic strains due to matrix - cluster interactions change the process qualitatively as compared with dependencies established theoretically first by Lifshitz and Slezov. Such a qualitatively different behavior occurs always when the energy of elastic deformation in cluster growth increases more rapidly than linear with the volume of a cluster. Analytic solutions, for limiting cases, as well as numerical solutions, for the general case of coarsening in an ensemble of pores with a given pore size distribution, are presented. Possible applications are discussed

Topics: phase transformations in solids, elastic strains, coarsening, Chemistry, QD1-999, Science, Q, DOAJ:Chemistry (General), DOAJ:Chemistry
Publisher: Sociedade Brasileira de Química
Year: 1998
DOI identifier: 10.1590/S0100-40421998000400030
OAI identifier: oai:doaj.org/article:bf2ce502509548b4960173aea27b3415
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