A sectioning technique was used to study the self-diffusion of Ag ions in the cubic high-temperature modification of AgI (table 217). The results, for temperatures ranging from 200 to 500C could be described by:

D (cm2/s) = 1.662 x 10-4 exp[-2.19(kcal/mol)/RT]

A.Kvist, F.Z.Tärneberg: Zeitschrift für Naturforschung, 1970, 25a[2], 257-9

 

 

Table 217

Self-Diffusion of Ag Ions in Cubic AgI

 

Temperature (C)

D (cm2/s)

500

4.13 x 10-5

475

3.71 x 10-5

450

3.68 x 10-5

400

3.07 x 10-5

350

2.64 x 10-5

300

2.41 x 10-5

250

2.14 x 10-5

225

1.85 x 10-5

200

1.59 x 10-5