The heterodiffusion of 60Co in polycrystalline Marz-type material was studied by using a serial sectioning technique. At 933 to 1323K, the results could be described by:
D (m3/s) = 5.1 x 10-15 exp[-120(kJ/mol)/RT]
At 673 to 933K, the results were described by:
D (m3/s) = 1.3 x 10-11 exp[-174(kJ/mol)/RT]
J.Cermak: Physica Status Solidi A, 1990, 117[2], 387-93
Table 150
Parameters for the Diffusion and Migration of
H Isotopes in Ni in an External Electric Field
Isotope | E (eV) | Do (cm2/s) | D368K (cm2/s) |
1H | 0.41 | 0.0047 | 1.14 x 10-8 |
2H | 0.39 | 0.00533 | 2.43 x 10-8 |
3H | 0.39 | 0.0179 | 8.15 x 10-8 |