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 55) occurred via vacancies, and the results for temperatures of between 393 and 441C indicated an activation energy of 1.88eV.

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

 

 

Table 55

Diffusivity of 63Ni in AgCl

 

Temperature (C)

D (cm2/s)

440.5

2.21 x 10-9

416.4

7.60 x 10-10

392.8

2.47 x 10-10

373.8

1.25 x 10-10

350.2

4.27 x 10-11