The diffusion coefficients were measured in 0.1at%Al alloy at 489 to 774K. The 16O was injected by ion implantation. The diffusion penetration profiles were then measured by exploiting the 16O(d,p)17*O nuclear reaction. The temperature dependences of the O diffusivity were described by:

D(m2/s) = 1.3 x 10-5 exp[-132.8(kJ/mol)/RT]

It was found that the addition of Al hardly affected O diffusion.

H.Nakajima, S.Nagata, H.Matsui, S.Yamaguchi: Philosophical Magazine A, 1993, 67[3], 557-71