The migration of D and H was measured by using a steady-state method. It was found that both isotopes moved towards the cooler end. The heat of transport was appreciably smaller for H than for D. The addition of Cr or Ti increased the heat of transport, whereas Fe or Mo did not greatly affect it (table 184).

H.Nakajima, M.Yoshioka, M.Koiwa: Transactions of the Japan Institute of Metals, 1987, 28[12], 949-56

 

 

Table 184

Heat of Thermomigration of 1at%D or H

in V, V-Cr, V-Fe, V-Mo and V-Ti

 

Material

Temperature (C)

Isotope

E (kJ/mol)

V

360-420

H

4.8

V

360-430

D

12.9

V-4.0at%Cr

350-420

H

8.6

V-4.0at%Cr

350-420

D

17.4

V-4.0at%Fe

350-420

H

6.9

V-4.0at%Fe

350-420

D

12.2

V-4.27at%Mo

350-420

H

8.0

V-4.27at%Mo

360-430

D

10.9

V-4.02at%Ti

370-430

H

18.3

V-4.02at%Ti

350-430

D

24.3