The diffusivity in FeTiHx at 633 to 759K was found, using quasi-electron neutron scattering, to be described by:

D (cm2/s) = 7.2 x 10-4 exp[-0.50(eV)/kT]

for x-values of 0.65 to 1.03.

E.Lebsanft, D.Richter, J.M.Töpler: Zeitschrift für Physikalische Chemie, 1979, 116, 175-83. See also: Journal of Physics F, 1979, 9[6], 1057-64