Method for preparing Cr-Ti-V type hydrogen occlusion alloy

Details Method for preparing Cr-Ti-V type hydrogen occlusion alloy Method for preparing Cr-Ti-V type hydrogen occlusion alloy

2007-02-13

2007-02-13

King, Roy (Department: 1742)

Metal treatment

Process of modifying or maintaining internal physical...

With casting or solidifying from melt

C148S559000, C148S668000, C148S669000, C420S417000, C420S418000, C420S420000, C420S421000, C420S428000

Reexamination Certificate

active

10476070

ABSTRACT:
The invention relates to a method for producing high-performance Cr—Ti—V hydrogen storage alloys utilizing a thermit process, whereby residence of adversely affecting impurities is inhibited, addition of not less than 10 at % of Ti as an alloy component is realized, and thermal burden on the crucible used in the method is reduced. The method includes the steps of: (A) providing an alloy material (1) comprising a Cr oxide, a V oxide, and a reducing agent Al, and an alloy material (2) comprising Ti; (B) placing the alloy materials in a crucible for thermit reduction so that the alloy material (1) is placed above the alloy material (2); (C) igniting the alloy material (1) placed in step (B) and melting all metal elements contained in the alloy materials the with heat of the thermit reaction of the alloy material (1); and (D) making the alloy melt obtained in step (C) into an alloy.

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