The diffusion of 14C was measured as a function of composition at 1450 to 2280C, and could be represented by:

0.970:     D(cm2/s) = 6.98 exp[-95300/RT]

0.887:     D(cm2/s) =45.44 exp[-106800/RT]

S.Sarian: Journal of Applied Physics, 1968, 39[7], 3305-10