The superconducting oxide was studied, at temperatures ranging from 350 to 800C, by using serial sectioning and resistivity techniques. It was found that the data could be described by:

D(cm2/s) = 0.0052 exp[-0.70(eV)/kT]

The rapid Ag migration, with D ranging from 1.3 x 10-8 to 8 x 10-7cm2/s over the above temperature range, was explained in terms of Ag movement via pore surfaces and grain boundaries.

T.D.Dzhafarov, H.Cömert, M.Altunbas, U.Alver, T.Küçükömeroglu, A.I.Kopya: Journal of Alloys and Compounds, 1995, 221, 264-6