The migration of H and D under the influence of an external electric field was studied. On the basis of the results, the H mobility at 600C was calculated to be 1.885 x 10-3cm2/Vs.

A.Herold, J.F.Mareche, J.C.Rat: Comptes Rendus, 1971, 273[25], 1736-9

 

Table 97

Heat of Transport of H and D in Nb

 

Temperature (C)

Isotope

H (kJ/mol)

35

H

11.9

35

D

18.0

175

H

9.4

175

D

16.3