The permeation and diffusion of H and D through the alloy were measured by using a membrane technique. At 180 to 550C, the diffusivity results were described by:

H:     D (cm2/s) = 6.3 x 10-3 exp[-11100/RT]

D:     D (cm2/s) = 2.6 x 10-3 exp[-10300/RT]

D.R.Begeal: Journal of Vacuum Science and Technology, 1975, 12[1], 405-9