The hydrides which were formed during cathodic polarization in acid solutions were studied by using the 15N nuclear reaction method. The diffusivities in the hydrides were determined (table 166). The H diffusivity in Ti single crystals depended upon the crystal orientation.

E.Brauer, R.Gruner, F.Rauch: Berichte der Bunsengesellschaft für Physikalische Chemie, 1983, 87[4], 341-5

 

 

 

Table 166

H Diffusion in Metal Hydrides

 

Hydride

D22C (cm2/s)

Do (cm2/s)

E (eV)

TiH1.65

8.68 x 10-11

1.33 x 10-4

0.36

TiNi0.5H1.55

8.37 x 10-11

4.15 x 10-4

0.38