Theory of Growth of Spherical Precipitates from Solid Solution

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  • Clarence Zener
    Institute for the Study of Metals, The University of Chicago, Chicago, Illinois

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Abstract

<jats:p>The radius of a spherical precipitate particle growing in a solid solution of initially uniform composition may be shown to be equal to α(Dt)½, where D is the atomic diffusion coefficient, t the time of growth, and α, the growth coefficient, is a dimensionless function of the pertinent compositions. In this paper the precise dependence is found of this function upon the pertinent concentrations. A similar computation is made for the growth coefficient corresponding to the one-dimensional growth of a plate.</jats:p>

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