The permeability of alloy foil at 450C increased linearly from 30 to 80m/h when the H partial pressure was increased from 25 to 210atm. The permeability also increased with increasing temperature; with this increase being greater at higher pressures. It also increased when the surface of the foil was coated with Pd-black (by electrodeposition) or with a thin film of Ag (by vacuum sputtering).

J.K.Baichtok, M.B.Aizenbud, V.A.Kurtovskii, A.S.Furmanov, I.J.Azbel, Z.V.Korbutova: Khim. Prom., 1968, 44[10], 744-6