Resistivity methods were used to study the diffusion of O at 650 to 1020C. The results could be described by:

D (cm2/s) = 2.5 x 10-6 exp[-14(kcal/g-atom)/RT]

L.N.Larikov, B.G.Nikitin: Ukr. Fiz. Zh., 1977, 22[8], 1373-5