Metal treatment – Stock – Containing over 50 per cent metal – but no base metal
Patent
1996-07-10
1999-03-23
Phipps, Margery
Metal treatment
Stock
Containing over 50 per cent metal, but no base metal
420900, 429 59, 429101, 204293, C01B 624, C22C 3000
Patent
active
058853782
ABSTRACT:
This invention provides a hydrogen occluding alloy having a composition comprising, by wt %, 25% to 45% of Zr, 1% to 12% of Ti, 10% to 20% of Mn, 2% to 12% of V, 0.5% to 5% of at least one rare earth element, optionally 0.1% to 4% of Hf, one or more selected from hydrogen, hydrogen+oxygen, and oxygen, and a balance being Ni (25% or more of Ni) and unavoidable impurities, having a structure comprising: a phase made of a hydrogenated-product, dispersedly distributed in a matrix phase made of a Zr--Ni--Mn based alloy. The hydrogenated-product mainly comprises a rare earth element-Ni type alloy and a rare earth element hydride with numerous cracks formed at the time when the hydrogenated-product phase is generated. The hydrogenated-product phase is formed by exposing a hydrogen-containing substance on the surfaces of the cracks. Electrodes made of the alloy are disclosed.
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Kakehashi Shinichiro
Komada Norikazu
Matsumoto Mitsugu
Tamo Yoshitaka
Mitsubishi Materials Corporation
Phipps Margery
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