Serial sectioning methods were used to study the diffusion of 191Pt, 195mPt and 197Pt tracers at 1149 to 1352K. The results could be described by:

D (cm2/s) = 5.6 x 101 exp[-233(kJ/mol)/RT]

G.Neumann, M.Pfundstein, P.Reimers: Philosophical Magazine A, 1982, 45[3], 499-507