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 46) occurred via vacancies, and the results for temperatures of between 325 and 440C indicated an activation energy of 1.25eV.

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

 

 

Table 46

Diffusivity of 51Cr in AgCl

 

Temperature (C)

D (cm2/s)

439.5

3.16 x 10-9

427.8

2.11 x 10-9

401.3

8.99 x 10-10

375.0

3.76 x 10-10

350.6

1.63 x 10-10

325.3

6.41 x 10-11