The diffusion coefficients were measured 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 (table 318) were described by:

V-0.1Al:     D(m2/s) = 1.3 x 10-5 exp[-132.8(kJ/mol)/RT]

V-0.1B:     D(m2/s) = 3.6 x 10-6 exp[-127.9(kJ/mol)/RT]

It was found that the addition of Al hardly affected O diffusion, whereas the addition of B decreased the diffusivity by 20 to 70%.

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