Abstract
Establishment times of vacancy equilibrium t* in spherical samples of simple crystals of radius R due to thermal motion of atoms during the process maximally approached to the equilibrium upon lowering the temperature from the melting point to the current value T have been calculated. It has been found that (i) with a decrease in T, the equilibrium time t* exponentially increases, and (ii) with a decrease in the sample radius R, the time t* exponentially decreases. The general tendency toward increase in the time t* due to lowering the temperature overlaps the effect of decreasing sample size R; therefore, for any small samples, the temperature range T < T*, for which the diffusion process is almost frozen, always exists.
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Original Russian Text © Yu.K. Tovbin, V.N. Komarov, 2014, published in Fizika Tverdogo Tela, 2014, Vol. 56, No. 2, pp. 337–342.
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Tovbin, Y.K., Komarov, V.N. Temperature dependence of the establishment time of the vacancy equilibrium in simple crystals. Phys. Solid State 56, 341–346 (2014). https://doi.org/10.1134/S1063783414020292
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DOI: https://doi.org/10.1134/S1063783414020292