Hydrogen storage alloy and method for producing the same

Details Hydrogen storage alloy and method for producing the same Hydrogen storage alloy and method for producing the same

1998-01-08

1999-01-26

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

148513, 420416, 420900, 75343, 75352, B22F 100, B22F 300

Patent

active

058640720

ABSTRACT:
A method for making a hydrogen storage alloy comprises subjecting a bulky hydrogen storage alloy to a first thermal treatment at a temperature ranging from 800.degree. to 1100.degree. C., cooling the thus treated alloy, grinding the cooled alloy to pieces having an average particle size of 20 .mu.m or below, and subjecting the pieces to a second thermal treatment in vacuum or in an atmosphere of an inert gas at a temperature of 200.degree. to 1050.degree. C. to obtain an alloy product. A hydrogen storage alloy obtained by the method is also described.

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