Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5466051 | Thin Solid Films | 2017 | 33 Pages |
Abstract
This paper investigates the effect of graphene oxide (GO) on morphology, microstructure and corrosion behaviour of Cu-GO composite coatings. Cu-GO composite coatings were electrodeposited on mild steel substrate by dispersing chemically synthesised GO into a Cu electrolytic bath. Anionic surfactant (sodium lauryl sulphate) was used to obtain uniform and compact coating morphology. Incorporation of GO into Cu matrix produced a finer granular coating morphology with a strong ã220ã preferred orientation. The analysis of electrochemcial corrosion test results revealed that steels coated with Cu-GO were invariably more corrosion resistant compared to both bare steel and pure Cu coated steel. Extent of the reduction in the corrosion rate increased with increasing amount of GO in electrodeposited Cu matrix. Improved corrosion resistance of Cu-GO coatings was related to ã220ã texture and high impermeability of GO to Cu+ ions and dissolved O2 in the chloride media.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Y. Raghupathy, Anshul Kamboj, Rekha M.Y., Narasimha Rao N.P., Chandan Srivastava,