Patent ID: 9266071
Filing Date: 2016-02-23
CPC Classification: B01D,C01B,C22C,C22F

Claim Text:
1. A hydrogen separation alloy being represented by a compositional formula: Nb 100−(α+β) M 1 α M 2 β , wherein M M α and β satisfy following conditions: 10≦α≦60, 10≦β≦50, and α+β≦80, and containing inevitable impurities; and having a metallographic structure being biphasically separated into an Nb-enriched phase serving as a hydrogen-permeable phases; and a transition metal phase serving as a hydrogen-embrittlement-resistant phases, wherein the hydrogen-permeable phases and the hydrogen-embrittlement-resistant phases each are to have an elongated structure when a cold rolling is performed on the hydrogen separation alloy, and the hydrogen-permeable phase occupying 35% to 70% of an arbitrary 10 μm×10 μm square region in a 50 μm×50 μm square observation plane of a cross section of the alloy under observation with an electron microscope, the cross section being taken in a direction of the thickness of the alloy and in a direction of the length of the alloy, wherein the hydrogen-permeable phase is an Nb-M wherein the hydrogen-embrittlement-resistant phase is a M wherein at least a portion of the hydrogen-permeable phase are connected in the thickness direction.