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 340
Diffusion of Hf in α-Zr
Temperature (K) | Direction | D (m2/s) |
1095 | || | 5.7 x 10-18 |
1095 | | 3.7 x 10-18 |
1096 | || | 4.5 x 10-19 |
1096 | || | 5.7 x 10-19 |
1096 | | 2.0 x 10-18 |
1096 | | 1.2 x 10-18 |