Auger electron spectroscopic techniques were used to monitor the diffusion of O away from the surface of (001) monocrystals. The results could be described by:

D (cm2/s) = 4.14 x 10-2 exp[-47.4(kcal/mol)/RT]

and reflected the diffusion of O along the c-axis.

B.J.Flinn, C.S.Zhang, P.R.Norton: Physical Review B, 1993, 47[24], 16499

The best linear fits to the solute diffusion data ([1305] to [1309], [1313] to [1314], [1317] to [1318], [1322] to [1325], [1332] to [1334]) yield:

Cr: Ln[Do] = 0.55E – 22.7 (R2 = 0.82); H: Ln[Do] = 0.17E – 8.2 (R2 = 0.32);

Mn: Ln[Do] = 0.27E – 14 (R2 = 0.97); O: Ln[Do] = 0.29E – 14.4 (R2 = 0.37);

Zr: Ln[Do] = 0.34E – 18.9 (R2 = 0.999)