Fine copper powder and process for producing the same
AssigneeMitsui Mining & Smelting Co., Ltd.
InventorsKenzo Hanawa, Kazuaki Takahashi
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Abstract
A fine flaky copper powder having an average major axis diameter of 4 to 10 μm and a flakiness of 2 to 20, has a bulk density of 2 to 4 g/cm3 and a BET specific surface area of 0.4 to 1.5 m2/g; A process for producing the copper powder includes introducing a copper slurry into a medium type agitation mill and flattening the powder.
Claims4
A fine flaky copper powder having an average major axis diameter of 4 to 10 μm, a flakiness of 2 to 20, a bulk density of 2 to 4 g/cm3 and a BET specific surface area of 0.4 to 1.5 m2/g.
A process for producing a fine flaky copper powder, comprising introducing a copper slurry having fine granular copper particles having an average particle size of 3 to 5 μm dispersed in water into an agitation mill and flattening said fine copper powder.
Dependencies are inferred from the claim text.