A study was made of the H diffusion in the Hf-H system by analyzing temperature-broadening of the nuclear magnetic resonance lines (table 84).

E.F.Khodosov, V.I.Kurishko: Fizika Tverdogo Tela, 1973, 3, 60-2

 

Table 84

Activation Energy for H Diffusion in HfHx

 

x

Temperature (C)

E (kcal/mol)

1.35

60-80

8.3

1.35

80-120

20.7

1.5

60-101

9.2

1.5

101-143

18.8

1.53

60-100

9.5

1.53

100-131

19.8

1.98

170-240

19.5