Ostwald ripening in porous materials

Química Nova

关键词: phase transformations in solids;    elastic strains;    coarsening;   

DOI  :  10.1590/S0100-40421998000400030

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown