Internal friction methods were used to study the diffusion of H. The results could be described by:
D (m2/s) = 5.21 x 10-7 exp[-158.48(kJ/mol)/RT]
H.Kokawa, T.Watanabe, A.Uehara, S.Karashima: Scripta Metallurgica, 1978, 12[4], 357-9
Table 264
Parameters for O Diffusion in Ta-Mo Alloys
Mo (at%) | O (at%) | ln Do(m2/s) | E (kJ/mol) |
2.6 | 0.45 | -13.64 | 120 |
3.2 | 0.73 | -13.87 | 118 |
6.5 | 0.5 | -13.40 | 124 |