The diffusivity of H in the hydride, FeTiH, at temperatures of between 633 and 759K was found to be described by:

D (cm2/s) = 7.2 x 10-4 exp[-0.5(eV)/kT]

E.Lebsanft, D.Richter, J.M.Töpler: Zeitschrift für Physikalische Chemie, 1979, 116, 175-83