By using the serial sectioning technique, a study was made of the diffusion of 85Sr in single crystals (table 43). The data, for temperatures ranging from 255 to 398C, could be described by:

D (cm2/s) = 0.33 exp[-0.98(eV)/kT]

These results were consistent with a vacancy mechanism, and supported the thesis that ions with no outer d-shell electrons diffused almost entirely substitutionally in Ag halides.

Diffusion of Strontium Ion in Silver Chloride. A.L.Laskar, A.P.Batra, L.Slifkin: Journal of Physics and Chemistry of Solids, 1969, 30[8], 2061-4

Table 44

Diffusivity of 48V in AgCl