The diffusivity of 110Ag in alumina was studied by using radiotracer methods. It was found that the pipe diffusion results could be described by:

D (m4/s) = 4.3 x 10-16 exp[-321(kJ/mol)/RT]

L.Badrour, E.G.Moya, J.Bernardini, F.Moya: Journal of the Physics and Chemistry of Solids, 1989, 50[6], 551-61