The diffusion of H was studied by means of a layer-by-layer local spectral analysis. It was found that, for Zr-2.5wt%Nb at 318C, the diffusivity was equal to 9.8 x 10-9cm2/s. For Zr-2.5Nb-0.5Cu-0.1wt%O at 333K, the diffusivity was 1.85 x 10-8cm2/s.

T.V.Barasheva, I.A.Anisimova, E.I.Guslkova, M.I.Ermolova: Metalloved. Term. Obrab. Met., 1978, 4, 75-7

 

Table 201

Diffusion of H in Zr3RhH3.5

 

Temperature (K)

D (cm2/s)

475

1.27 x 10-7

500

2.07 x 10-7

525

3.90 x 10-7