Patent ID: 8105424
Filing Date: 2012-01-31
Classification: B01D,C01B,H01M,Y02E,Y10S

Abstract:
1. A hydrogen permeation/separation thin membrane comprising a Ni—Ti—Nb alloy, said Ni—Ti—Nb alloy being a cast foil material obtained by roll quenching to a thickness of 0.07 mm or less, and then being subjected to a refining heat treatment, and said Ni—Ti—Nb alloy having: (a) a composition consisting of 10 to 47 atomic % of Nb, 20 to 52 atomic % of Ti, and a remainder containing 20 to 48 atomic % of Ni and inevitable impurities; and (b) an alloy structure where fine particles of a Nb-based solid solution alloy, in which Nb forms a solid solution with Ni and Ti, are dispersed in a basic structure made of a Ni—Ti(Nb) intermetallic compound formed of a solid solution of a Ni—Ti intermetallic compound, in which part of the Ti thereof is replaced by Nb.