A study was made of the diffusion of 60Co in single crystals at 724 to 9302K. The results could be described by:

D (m2/s) = 5.06 x 10-3 exp[-1.82(eV)/kT]

G.M.Hood, R.J.Schultz, J.Armstrong: Philosophical Magazine A, 1983, 47[5], 775-9