The migration of Ag in cold-pressed Pb0.95Sr0.05(Zr0.53Ti0.47)O3 ceramics was studied, by using radioactive tracers and sectioning, after isothermal annealing at temperatures of between 500 and 750C. It was found that the results could be described by:

D (cm2/s) = 0.83 exp[-124(kJ/mol)/RT]

The Ag thus exhibited a high diffusivity; having a coefficient of about 5 x 10-7cm2/s at 750 to 800C. This was attributed to grain boundary diffusion.

M.V.Slinkina, V.M.Zhukovskii, L.S.Ziangirova, G.I.Dontsov, A.S.Zhukovskaya, V.V.Kochetygov: Izvestiya Akademii Nauk SSSR - Neorganicheskie Materialy, 1990, 26[12], 2634-7. [Inorganic Materials, 1990, 26[12], 2266-8]