The diffusive behavior of Ag in 3N-purity material was studied at 200 to 310C. The results could be described by:

D (cm2/s) = 6.4 x 10-2 exp[-14.4(kcal/mol)/RT]

P.P.Kuzmenko, G.P.Grinevich, B.A.Danilchenko: Fizika Metallov i Metallovedenie, 1970, 29[2], 318-23