By using solubility and resistivity measurements, the mobility of H in Zr at 800C was deduced to be 2.5 x 10-4cm2/Vs: a value which was 1.4 times that for D under the same conditions.

A.Herold, J.F.Mareche, J.C.Rat: Comptes Rendus, 1974, 278[15], 1009-10

 

Table 200

Activation Energies for H Diffusion in Zr2PdHx

 

x

Structure

Temperature (K)

E (eV)

1.68

crystalline

260-530

0.401

1.84

crystalline

270-540

0.411

1.94

crystalline

260-540

0.370

2.88

amorphous

360-465

0.364

2.88

amorphous

220-360

0.192

2.88

amorphous

140-200

0.090