The serial sectioning technique was used to study the diffusion of 35SO42- ions in single crystals, in the intrinsic range. The results (table 87) could be described by:

D (cm2/s) = 0.187 exp[-1.23(eV)/kT]

M.Bénière, F.Bénière, M.Chemla: Solid State Communications, 1973, 13[9], 1339-43

 

 

Table 87

Diffusivity of SO4 in KCl Crystals

 

Temperature (C)

D (cm2/s)

738.4

1.33 x 10-7

683.7

5.89 x 10-8

637.3

2.48 x 10-8

612.1

1.90 x 10-8

568.6

7.65 x 10-9