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We have measured the activation volume of Zn in Pb to be 3.98 ±{} 0.11 cm³/mole at 600 K and atmospheric pressure and have measured the temperature and pressure dependence of the saturation solubility of Zn in Pb. From the solubility measurements we find a volume of solution of 3.1 ±{} 0.3 cm³/mole, which is not consistent with purely interstitial or purely substitutional solution. These results are compared to other impurity diffusion in Pb.
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Decker et al. (1977) studied this question.
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