Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kazuhiro Ishikawa0
Tsuyoshi Sasaki0
Toshiki Kabutomori0
Kiyoshi Aoki0
Date of Patent
April 7, 2009
0Patent Application Number
113902180
Date Filed
March 28, 2006
0Patent Primary Examiner
Patent abstract
A (Nb, Ti) phase in an Nb—Ti—Co alloy is composed of a granular structure. The Nb—Ti—Co alloy is preferably subjected to heat treatment at 800° C. or more so that the eutectic structure in the casted state can be changed to a granular structure. The Nb—Ti—Co alloy used there is preferably NbxTi(100-x-y)Coy, (x≦70, 20≦y≦50 (mol %)). By properly predetermining the heating temperature and time, the resulting alloy exhibits improved hydrogen permeability in combination with a good hydrogen embrittlement resistance characteristic in the CoTi phase, making it possible to provide a practical hydrogen permeable membrane having an advantageously high performance.
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