The diffusion coefficients and solubility constants of H were determined by using a capillary method between 500 and 650C. The diffusivity data (figure 21) could be described by:

D (m2/s) = 1.38 x 100 exp[-162(kJ/mol)/RT]

This correlation was consistent with one extrapolated from published data at higher temperatures. The discrepancies among other published data were explained in terms of the interaction of Li with H.

S.Fukada, M.Kinoshita, K.Kuroki, T.Muroga: Journal of Nuclear Materials, 2005, 346[2-3], 293-7