Abstract
The ultrafine electrolytic copper powders were coated by silver using a combination of displacement reaction and reduction method, and the bimetallic core-shell powders with a 10wt.% addition of silver were obtained. The effects of concentration of complexing-dispersing agent and reducing agent on the silver coating layer were studied. The morphology, composition and structure of bimetallic core-shell powders were characterized by scanning electron microscopy, X-ray diffraction and energy dispersive spectroscopy. The oxidation resistance and electric conductivity of the coated powders were also investigated. The experimental results showed that the powders have a better oxidation resistance and higher conductivity using the complexing-dispersing agent of 10g/L EDTA-2Na and the reducing agent n of 30 g/L formaldehyde.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
