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KINETICS OF OSTWALD RIPENING: CROSSOVER FROM WAGNER'S MODE TO THE LIFSHITZ–SLEZOV MODE

P. YU. GUBANOV

University of Nizhny Novgorod, 23 Gagarin Avenue, 603950, Nizhny Novgorod, Russia

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I. L. MAKSIMOV

University of Nizhny Novgorod, 23 Gagarin Avenue, 603950, Nizhny Novgorod, Russia

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, and

V. P. MOROZOV

University of Nizhny Novgorod, 23 Gagarin Avenue, 603950, Nizhny Novgorod, Russia

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https://doi.org/10.1142/S0217984907013298Cited by:3 (Source: Crossref)

Abstract

The kinetics of the Ostwald ripening in a homogeneous supersaturated solution is studied both numerically and analytically. The time evolution of the grain-size distribution function in a new phase is theoretically described, taking into account the finite value of the maximal size of a grain. Two situations are considered: the kinetics of grain growth is controlled either by the grain-monomer reaction process (an early stage) or by the monomer diffusion process (a late stage). A transition to the final distribution is shown to take place through an intermediate-asymptotical mode of the Ostwald ripening kinetics, the crossover of the kinetic indices is demonstrated, and the duration of intermediate stage is evaluated.

Keywords:

PACS: 64.90.+b, 68.43.Mn

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