The H permeability of a melt-spun Ni60Nb30Ta10 (at%) amorphous alloy was examined at 573 to 673K and pressures up to 0.6MPa. Pd60Cu40 alloy membranes were also evaluated in the same manner. The permeated H flux was increased with increasing the temperature and the difference of H pressure between the feed side and permeate side of the membrane. The maximum H permeability of the Ni60Nb30Ta10 glassy alloy was 4.13 x 10−8mol/msPa1/2 at 673K, which was almost twice the permeability of Pd60Cu40 alloy measured under the same conditions. These permeation characteristics implied the possibility of future practical application of the glassy alloys as the H separation membrane.

Hydrogen Permeation Properties of Pd-Coated Ni60Nb30Ta10 Amorphous Alloy Membrane. K.B.Kim, K.D.Kim, D.Y.Lee, Y.C.Kim, E.Fleury, D.H.Kim: Materials Science and Engineering A, 2007, 449-451, 934-6