The permeability of hydrogen in several unoxidized metals:
Courtesy of REB Research & Consulting.
aluminum, copper, iron, gold, kovar, niobium, palladium, platinum, silver, tantalum, titanium, and vanadium.
Mols of Hydrogen/m.s.Pa^.5
Hydrogen Transport Barriers, Permeation Windows, and Sorbers
Low-permeation materials can be used as hydrogen permeation barriers. When coated on stainless steel they can reduce the rate of hydrogen transport -- useful for sterling engines and tritium containment.High permeation materials can be used as hydrogen permeation windows and purifiers, or as hydrogen sorbers.
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See a graph of the solubility of H2 in Al, Co, Cu, Fe, Ni, Nb, Pd, Pt, Ag, Ta, Sn, Th, Ti, V, and Zr. |
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