The diffusive behavior of Cu in single crystals was studied at 290 to 350C. The results could be described by:

D (cm2/s) = 8.2 x 10-8 exp[-0.64(eV)/kT]

H.Mann, G.Linker, O.Meyer: Solid State Communications, 1972, 11[3], 475-9

The best linear fits to the solute diffusion data ([26] to [45]) yield:

Cu: Ln[Do] = 0.21E – 14.3 (R2 = 0.06); Hg: Ln[Do] = E – 38.8 (R2 = 0.98);

In: Ln[Do] = 0.40E – 16.9 (R2 = 0.91); Na: Ln[Do] = 0.67E – 18.1 (R2 = 0.99)