The diffusion of In was studied, at 823 to 1073K, by means of Rutherford back-scattering spectroscopy. The results could be described by the expression:

D (m2/s) = 2.0 x 10-6 exp[-260(kJ/mol)/RT]

These diffusion parameters were typical of normal substitutional behavior. There was no sign of mass or size effects.

R.A.Perez, M.R.F.Soares, M.Behar, F.Dyment: Journal of Nuclear Materials, 1997, 249[1], 52-7