The diffusion of Zn in Ag has been measured in the temperature range from 640^∘{}C to 925^∘{}C, using high-specific-activity Zn⁶⁵ as a tracer. The data indicate that the diffusion coefficient is given to within 2% by the equation, D=0.54exp(-41 700/RT) cm²/sec.
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Sawatzky et al. (1955) studied this question.