SILVER-COATED COPPER POWDER, AND METHOD FOR PRODUCING SAME
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United States of America Patent
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Issued Date -
Sep 17, 2015
app pub date -
Nov 8, 2013
filing date -
Nov 30, 2012
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Abandoned
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Abstract
A silver-coated copper powder includes copper core particles and a silver coat layer located on the surface of the core particles. When S1 is a BET specific surface area (m2/g) of the silver-coated copper powder; S2 is a specific surface area (m2/g) calculated from a particle diameter D50 obtained by the analysis of a microscopic image of the silver-coated copper powder; and t is a thickness of the silver coat layer, the silver-coated copper powder satisfies Expression: (S1/S2)≦0.005×t+1.45. The silver-coated copper powder has a volume cumulative particle diameter D50L at a cumulative volume of 50 vol % as measured by laser diffraction-scattering method of 0.01 to 100 μm.
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