The serial sectioning and radiotracer technique was used to study the diffusion of 113Sn, at 1018 to 1355K, in 5N-purity material with a grain size greater than 2mm. The results were described by:

D (cm2/s) = 6.7 x 10-1 exp[-1.91(eV)/kT]

G.Krautheim, A.Neidhardt, U.Reinhold, A.Zehe: Physics Letters A, 1979, 73[2], 181-4