The diffusion of 60Co was studied in 5N-purity material at 700 to 940C. The diffusion coefficient could be described by:

D (cm2/s) = 1.9 x 100 exp[-48.75(kcal/mol)/RT]

J.Bernardini, A.Combe-Brun, J.Cabane: Scripta Metallurgica, 1970, 4[12], 985-90