Document Type and Number:
Japanese Patent JPH0242893
Kind Code:
B2
Abstract:
PURPOSE:To improve the maximum amount of hydrogen occlusion and hydrogen occluding and releasing velocities of the titled alloy to be obtained and also to improve hysteresis, by specifying a composition of a Zr alloy containing Fe, V, and metal A (at least one element among Ti, Nb, and Mo). CONSTITUTION:The titled alloy has a composition represented by a rational formula ZrXAy(Fe1-kVk)2 by atomic composition ratio, where A is mentioned above and the symbols (x), (y), and (k) stand for 0.4-1.0, >0-0.6, and 0.2-0.3, respectively. Owing to this composition, this alloy is easily activated and is capable of occluding large amounts of hydrogen in high density and also capable of exerting hydrogen releasing and occluding reactions perfectly reversibly and, moreover, it has high gaseous impurity-resisting property. Accordingly, this alloy is suitable for use in hydrogen storage and transportation system, hydrogen separation and purification system, etc., in particular as well as in heat accumulation devices, temperature sensors, etc., used at a temp. between ordinary temp. and about 100 deg.C.
Application Number:
JP18899887A
Publication Date:
September 26, 1990
Filing Date:
July 30, 1987
Export Citation:
International Classes:
C22C14/00; C01B3/00; C22C16/00; C22C38/00; C22C38/14
Next Patent: RHYTHM SENSOR