The diffusive behavior of Ag in 4N5-purity single crystals was studied at 392 to 595C. The results could be described by:

D (cm2/s) = 1.6 x 10-1 exp[-28.4(kcal/mol)/RT]

M.Beyeler, F.Maurice, R.Seguin: Mémoires Scientifiques de la Revue de Métallurgie, 1970, 67, 295-302