The adsorption and diffusion of D was investigated by using the direct glow method and permeability techniques which involved impulse time-of-flight mass spectrometry for the recording of partial pressure variations. The absence of any permeability of Au relative to molecular D was attributed to the small probability of its dissociative chemisorption, and the velocity of penetration of atomic D through Au was limited by a low solubility. For temperatures ranging from 550 to 700K, the activation energy for D diffusion was found to be equal to 4.9kcal/g-atom.

N.I.Ionov, T.N.Kompaneets, A.I.Kostovanov, A.A.Kurdyumov: Fizika Tverdogo Tela, 1974, 16[9], 2541-5