Interdiffusion methods were used to study the diffusion of Al at 470 to 570C. The results could be described by:

D (cm2/s) = 1.25 x 10-7 exp[-0.8(eV)/kT]

H.Qingheng, E.S.Yang, H.Izmirliyan: Solid State Electronics, 1982, 25[12], 1187-8