The diffusion of O was measured by using potentiostatic and electrochemical methods at 873 to 1073K. The results could be described by:

D (cm2/s) = 6.6 x 10-3 exp[-32.6(kJ/mol)/RT]

S.Otsuka, Z.Kozuka, Y.A.Chang: Metallurgical Transactions B, 1984, 15[2], 329-35