The chemical diffusion coefficients of D were determined by performing Gorsky effect measurements at high D concentrations. Data were obtained between 22 and 70C for D/V ratios ranging from 0.73 to 0.82 (pure body-centered cubic α-phase). The diffusion coefficients obeyed Arrhenius laws, with activation energies of about 0.120eV. They could exceed 10-4cm2/s, and were up to 4 (2) times larger than the diffusion coefficients of D(H) in V at low concentrations. With the possible exception of Fe, they were thought to be the highest diffusion coefficients reported so far for H(D) in any metal in the considered temperature range, and were probably the highest for any solid-state diffusion process.

M.Hein, A.Bals, A.F.Privalov, H.Wipf: Journal of Alloys and Compounds, 2003, 356-357, 318-21