Nickel fine powder and method for preparing the same

Details Nickel fine powder and method for preparing the same Nickel fine powder and method for preparing the same

1999-02-01

2000-12-19

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

75343, 75348, 75370, 75371, 75374, B22F 100, B22F 900

Patent

active

06162277&

ABSTRACT:
A nickel fine powder includes 0.02 to 1.0% by weight of magnesium and/or 0.02 to 0.1% by weight of calcium dispersed in the nickel. A method for preparing the nickel fine powder includes the steps of forming nickel hydroxide by mixing an aqueous solution containing a magnesium salt and/or a calcium salt and a nickel salt with an aqueous solution of sodium hydroxide and then reducing the hydroxide with a hydrazine reducing agent. The nickel fine powder has thermal shrinkage characteristics very close to those observed for ceramic substrates and is accordingly suitable as a material for producing an internal electrode for laminated ceramic condensers.

REFERENCES:
patent: 3923496 (1975-12-01), Pall
patent: 4089676 (1978-05-01), Grundy

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