It was found that the data for 1150 to 1400C, could be described by:

D (cm2/s) = 1.25 x 100 exp[-72.1(kcal/mol)/RT]

J.R.MacEwan, J.U.MacEwan, L.Yaffe: Canadian Journal of Chemistry, 1959, 37, 1629-36

The best linear fit to the solute diffusion data ([658] to [660]) yields:

Ni: Ln[Do] = 0.22E – 15.3 (R2 = 0.86)