An investigation was made, of Ag self-diffusion in single crystals (table 27), by using the serial sectioning technique. By comparing the ionic conductivity with the Einstein relationship, it was shown that the interstitial Ag ion migrated via a combination of 2 types of interstitialcy jump: with an activation energy of 0.008eV for the co-linear jump, and 0.13eV for the non co-linear jump. Interstitialcy Motion in the Silver Halides. M.D.Weber, R.J.Friauf: Journal of Physics and Chemistry of Solids, 1969, 30[2], 407-19

 

Table 24

Diffusivity of 110mAg in AgCl Single Crystals

as a Function of Hydrostatic Pressure

 

P (atm)

Temperature (C)

D (cm2/s)

1

200

2.57 x 10-10

1

250

2.31 x 10-9

1

300

1.20 x 10-8

1

350

5.30 x 10-8

1500

200

1.43 x 10-10

1500

250

1.03 x 10-9

1500

300

6.30 x 10-9

1500

350

2.44 x 10-8

3000

200

8.90 x 10-11

3000

250

6.00 x 10-10

3000

300

3.30 x 10-9

3000

350

1.25 x 10-8

5000

200

6.40 x 10-11

5000

250

4.00 x 10-10

5000

300

1.90 x 10-9

5000

350

7.60 x 10-9

7000

200

4.50 x 10-11

7000

250

2.80 x 10-10

7000

300

3.55 x 10-9

7000

350

4.80 x 10-9