By using radio-tracer techniques, the diffusion of T in 3N-purity material at temperatures of 303 to 473K was found to be given by:
D (cm2/s) = 1.73 x 10-8 exp[-4.94(kJ/mol)/RT]
When electric fields of up to -0.05V/cm were applied, the effective charge on T was deduced to be 2.05e.
B.Rozenfeld, R.Pietrzak, B.Paszkiewicz, S.Sawicka: Nukleonika, 1973, 18[10], 439-46
Table 276
Parameters for H Diffusion ZrHx at 20 to 200C
x | Do (cm2/s) | E (kcal/mol) |
1.92 | 1 x 10-7 | 12.3 |
1.85 | 2 x 10-7 | 11.9 |
1.76 | 3 x 10-7 | 11.5 |
1.58 | 1 x 10-7 | 10 |
1.56 | 1 x 10-7 | 10 |
1.53 | 1 x 10-7 | 9.9 |