Single crystals with an initial impurity content of less than 1ppm were used, and the diffusion profiles were determined by means of radiotracer and sectioning techniques. Transition metal diffusion (table 48) occurred via vacancies, and the results for temperatures of between 274 and 442C indicated an activation energy of 1.26eV.

A.P.Batra, J.P.Hernandez, L.M.Slifkin: Physical Review B, 1980, 22[2], 734-42

 

 

Table 48

Diffusivity of 59Fe in AgCl

 

Temperature (C)

D (cm2/s)

442.0

1.99 x 10-8

409.1

6.69 x 10-9

408.9

6.65 x 10-9

385.9

3.05 x 10-9

354.5

1.02 x 10-9

314.2

2.19 x 10-10

298.0

1.06 x 10-10

274.3

3.51 x 10-11