The diffusive behavior of O was studied at 650 to 1200C. The results could be described by:

α-phase (650-1050C):     D (cm2/s) = 4.44 x 100 exp[-51.2(kcal/mol)/RT]

β-phase (1050-1200C):     D (cm2/s) = 9.77 x 10-1 exp[-41.0(kcal/mol)/RT]

J.Debuigne: Metals Corrosion et Industrie, 1967, 501, 186-203