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

B - Operations, Transporting

22

F

B22F 1/02 (2006.01) B22F 9/24 (2006.01) C22C 1/04 (2006.01)

Patent

CA 2260564

The present invention herein provides nickel fine powder which comprises nickel, and 0.02 to 1.0% by weight of magnesium and/or 0.02 to 0.1% by weight of calcium dispersed in the nickel; and a method for preparing nickel fine powder which comprises 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 for use, in particular, as a material for producing an internal electrode for laminated ceramic condensers.

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