Tracer and sectioning methods were used to study the diffusion of 57Co and 60Co in polycrystalline 4N-purity face-centered cubic material at 896 to 1745K. The results could be described by:

D (cm2/s) = 5.5 x 10-1 exp[-2.99(eV)/kT]

W.Bussmann, C.Herzig, W.Rempp, K.Maier, H.Mehrer: Physica Status Solidi A, 1979, 56[1], 87-98