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INTRODUCTION A polydisperse precipitate produced by nuclea-tion in a metastable supersaturated solution is far from thermodynamic equilibrium, i.e. a state of minimal free energy. A decrease of free energy is accom-plished by a coarsening of the precipitate which es-sentially reduces the surface free energy with respect to the surrounding solution. The process is called Ostwald ripening and is a direct consequence of the Kelvin effect (Adamson and Gast, 1997), that is the higher solubi… 相似文献
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