Synthesis and Characterization of Silver-Coated Copper Powder Layer

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Abstract:

This paper presents the process of preparing spherical silver-coated copper powder with a silver content of 30-50%, using chemical reduction and by adjusting the silver-coating process. By means of SEM, XRD, grain size analyser, digital ohmmeter and differential thermal analyser, the surface topology, structure and conductivity of silver-coated copper powder and raw copper powder are characterised. The results show that the spherical silver-coated copper powder has superior compact surface, complete coverage, a coated layer reaching a thickness of 336nm and excellent conductivity and anti-oxidation property.

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Key Engineering Materials (Volumes 512-515)

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141-146

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June 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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