The diffusive behavior of Ag on 5N-purity material was studied. The results could be described by:

(100), isotropic, 250-500C:     D (cm2/s) = 6.2 x 10-2 exp[-0.76(eV)/kT]

(111), isotropic, 250-500C:     D (cm2/s) = 4.6 x 10-1 exp[-0.76(eV)/kT]

(110), [1¯10], 250-450C:     D (cm2/s) = 2.8 x 100 exp[-0.74(eV)/kT]

(110), [001], 250-450C:     D (cm2/s) = 7.3 x 100 exp[-0.85(eV)/kT]

(100), [110], 300-450C:     D (cm2/s) = 2.4 x 10-4 exp[-0.42(eV)/kT]

(100), [1¯10], 300-450C:     D (cm2/s) = 5.8 x 10-4 exp[-0.45(eV)/kT]

(111), [112], 250-450C:     D (cm2/s) = 2.3 x 10-2 exp[-0.62(eV)/kT]

(111), [1¯10], 250-450C:     D (cm2/s) = 1.6 x 10-2 exp[-0.56(eV)/kT]

C.A.Roulet, J.P.Borel: Comptes Rendus de l’Academie des Sciences – C, 1972, 274[26], 2133-6