The diffusivity of Pt was determined at 750 to 1075C. It was found that the results could be described by:

D (cm2/s) = 6.7 x 10-1 exp[-55.7(kcal/mol)/RT]

R.L.Fogelson, Y.A.Ugai, A.V.Pokoev: Fizika Metallov i Metallovedenie, 1972, 33[5], 1102-4