Morphology, Texture and Corrosion Behavior of Nanocrystalline Copper–Graphene Composite Coatings

This article discusses morphology, texture and corrosion behavior of electrodeposited Cu–graphene composite coatings on mild steel. This study demonstrates that a metal–graphene composite coating, in which graphene is incorporated into a suitable metal matrix, is an effective way to harness the anti...

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Bibliographic Details
Published inJOM (1989) Vol. 69; no. 7; pp. 1149 - 1154
Main Authors Kamboj, Anshul, Raghupathy, Y., Rekha, M. Y., Srivastava, Chandan
Format Journal Article
LanguageEnglish
Published New York Springer US 01.07.2017
Springer Nature B.V
Subjects
Carbon steels
Chemical vapor deposition
Chemistry/Food Science
Coated electrodes
Copper
Corrosion potential
Corrosion resistance
Corrosion resistant steels
Corrosion tests
Dispersions
Earth Sciences
Electrodes
Electrolytes
Engineering
Environment
Graphene
Graphite
Materials science
Morphology
Nanocrystals
Physics
Plating
Protective coatings
Sodium chloride
Steel
Work stations
Composite Coating
Passive Film
Open Circuit Potential
Sodium Lauryl Sulfate
Electrochemical Corrosion
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Summary:This article discusses morphology, texture and corrosion behavior of electrodeposited Cu–graphene composite coatings on mild steel. This study demonstrates that a metal–graphene composite coating, in which graphene is incorporated into a suitable metal matrix, is an effective way to harness the anti-corrosive potential of graphene in producing anti-corrosive coatings for corrosion-prone materials such as steel. Enhanced corrosion resistance of such metal–graphene coatings can facilitate reductions in the requisite coating thickness and material costs in a given coating application. Cu–graphene composite coatings were electrodeposited from sulfate-based acidic electrolytic baths consisting of uniform dispersions of electrochemically exfoliated graphene. Incorporation of graphene into a Cu matrix promoted finer coating morphology, reduction in crystallite size and a strong texture, which subsequently made these composite coatings about 43% more corrosion resistant in 3.5% NaCl when compared to pure Cu coatings. Enhanced corrosion resistance of the composite coatings was indicated by the corrosion potential which increased with the amount of incorporated graphene.
ISSN:1047-4838
1543-1851
DOI:10.1007/s11837-017-2364-0