Rare earth metal-nickel hydrogen occlusive alloy ingot

Details Rare earth metal-nickel hydrogen occlusive alloy ingot Rare earth metal-nickel hydrogen occlusive alloy ingot

1993-05-17

1995-11-28

Simmons, David A.

Metal treatment

Stock

Nickel base

148429, 148442, 420900, 429223, C22C 1903, H01M 438

Patent

active

054704049

ABSTRACT:
A rare earth metal-nickel hydrogen occlusive alloy ingot contains 90 vol % or more of crystals having a crystal grain size of 1 to 50 .mu.m as measured along a short axis of the crystal and 1 to 100 .mu.m as measured along a long axis of the crystal. A method for producing the rare earth metal-nickel hydrogen occlusive alloy ingot involves melting a rare earth metal-nickel alloy and uniformly solidifying the alloy melt to have a thickness of 0.1 to 20 mm under cooling conditions of a cooling rate of 10.degree. to 1000.degree. C./sec and a sub-cooling degree of 10.degree. to 500.degree. C.

REFERENCES:
patent: 4717629 (1988-01-01), Ishikawa et al.
patent: 5008164 (1991-04-01), Furukawa et al.
patent: 5219678 (1993-06-01), Hasebe et al.

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