The migration of Sn was studied at 195 to 322C by using resistometric techniques. The results were found to obey:

D (cm2/s) = 2.9 x 10-1 exp[-1.03(eV)/kT]

The activation energy and diffusion coefficients agreed with published data.

S.K.Sen, A.Ghorai: Philosophical Magazine A, 1989, 59[3], 707-12