The interface diffusion of 113Sn tracer was measured in oriented 38wt%Pb eutectic specimens with a lamellar structure. The product of the interface diffusion coefficient and the width, δD, obeyed an Arrhenius relationship below 400K. The results could be described by:

D (m3/s) = 7 x 10-10 exp[-84.8(kJ/mol)/RT]

113Sn:     D (m3/s) = 7 x 10-12 exp[-77(kJ/mol)/RT]

D.Gupta, K.Vieregge, W.Gust: Acta Materialia, 1999, 47[1], 5-12