The self-diffusion of Sn in the β-phase, and of Sn in γ-phase monocrystals, was measured at 803 to 1024K. The β-phase results could be described by:

D (cm2/s) = 2.4 x 10-1 exp[-120.1(kJ/mol)/RT]

In the γ-phase, the Arrhenius plot for Sn diffusion exhibited a curvature, and was best described by 2 straight lines:

>900K:     D (cm2/s) = 9.8 x 10-1 exp[-129.8(kJ/mol)/RT]

<900K:     D (cm2/s) = 8.3 x 10-3 exp[-94.1(kJ/mol)/RT]

M.Arita, H.Nakajima, M.Koiwa, S.Miura: Materials Transactions, 1991, 32[1], 32-6