COMPOSITE COPPER PARTICLES AND PRODUCTION METHOD THEREFOR

Title:

COMPOSITE COPPER PARTICLES AND PRODUCTION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2015/019959

Kind Code:

A1

Abstract:

These composite copper particles are obtained by combining flat copper particles and a plurality of inorganic oxide particles being more minute than the flat copper particles. The inorganic oxide particles are unevenly distributed on the surface of the flat copper particles. Ideally, the volume cumulative particle diameter (D50) at the cumulative volume of 50% by volume, as determined by the laser diffraction/scattering particle size distribution measurement method, is 0.1-10 µm. In addition, ideally the aspect ratio indicated by d/t, being the ratio between the major axis (d) of the plate surface and the thickness (t), is 5-30. The inorganic oxide also ideally has a higher hardness than copper.

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Inventors:

KOHIRA TOSHIHIRO (JP)
SASAKI NOBUHIRO (JP)
MINOWA HIKARU (JP)

Application Number:

PCT/JP2014/070346

Publication Date:

February 12, 2015

Filing Date:

August 01, 2014

Export Citation:

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Assignee:

MITSUI MINING & SMELTING CO (JP)

International Classes:

B22F1/068; B22F1/16; C22C9/00; C22C9/01; C22C9/10; H01B1/00; H01B1/22; H01B5/00; H01B13/00

Foreign References:

JP2011006770A	2011-01-13
JP2000345201A	2000-12-12
JP2013019002A	2013-01-31
JPH0463124A	1992-02-28
JP2009072679A	2009-04-09
JP2003119501A	2003-04-23

Other References: