Diffusion of Mercury, Thallium and Lead in Aluminum

Abstract

Diffusion of mercury, thallium and lead in polycrystalline samples of aluminum was studied by conventional electroplating and RI tracer-sectioning techniques. The results obtained from the deeper regions of samples showed the real bulk diffusion. The temperature dependence of diffusion coefficients are expressed as
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\ oindentwhere D and D₀ are represented in the unit of m²/s and Q in kJ/mol. Experimental values of ΔQ were compared with theoretical ones obtained from the Le Claire’s theory.