Corrosion resistance and antibacterial properties of copper coating deposited by cold gas spray

This work describes the morphology, corrosion resistance, and antibacterial performance of copper coating deposited onto carbon steel by cold gas spray (CGS). Cross-sectional images of the coating showed a dense microstructure, with porosity lower than 1%. XRD analysis revealed no oxides or phases d...

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Bibliographic Details
Authors: Da Silva, F. S., Cinca i Luis, Núria, Dosta Parras, Sergi, García Cano, Irene, Guilemany, J. M. (José María), Caires, C.S.A., Lima, A.R., Silva, C.M., Oliveira, S.L., Caires, A.R.L., Benedetti, Assis Vicente
Format: article
Status:Versión aceptada para publicación
Publication Date:2019
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/161921
Online Access:https://hdl.handle.net/2445/161921
Access Level:Open access
Keyword:Corrosió i anticorrosius
Revestiments
Coure
Corrosion and anti-corrosives
Coatings
Copper
Description
Summary:This work describes the morphology, corrosion resistance, and antibacterial performance of copper coating deposited onto carbon steel by cold gas spray (CGS). Cross-sectional images of the coating showed a dense microstructure, with porosity lower than 1%. XRD analysis revealed no oxides or phases different to pure copper. The results of electrochemical tests demonstrated the efficient barrier properties and the compact microstructure of the coating, which protected the substrate against corrosion in chloride solution for > 1000 h. The copper coating was effective as an antimicrobial agent for inhibiting the growth of Staphylococcus aureus, with bacterial growth being completely inhibited after 10 min of direct contact between the bacteria and the coating surface.

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