Study of the electroplating process parameters on the electrical resistance of an aluminium alloy with a Cu-graphene-based coating. (2nd January 2023)

• Record Type: Journal Article
• Authors: Di Siena, Mario; Genna, Silvio; Guarino, Stefano; Ucciardello, Nadia
• Is Part Of: Surface engineering. Volume 39:Number 1(2023)
• Page Start: 90
• Page End: 101
• Publication Date: 2023-01-02
• Subjects: Graphene -- electrical resistance -- electrodeposition -- coating -- Alluminium -- copper -- GNP -- nanoplates; Surfaces (Technology) -- Periodicals; Coatings -- Periodicals; 620.4405
• DOI: 10.1080/02670844.2023.2194500
• Languages: English
• ISSNs: 0267-0844

Abstract

ABSTRACT: This study investigates the effects of the electroplating process parameters, such as temperature, graphene concentration in the bath and current density, on the electrical properties of a copper-coated aluminium alloy (AA6082). Based on previous experiences, a full factorial plan was developed and tested through the Design of Experiments (DOE) methodology to find a relation between parameters and properties. After validating the setup and the significance of the three input process parameters, a statistical model for copper electrodeposition is presented; the latter takes into account the physical interaction of the graphene nanoplatelets (GNP). From the results, the GNP amount is able to modify the electrical resistance of the copper coating; in detail, the resistance passes from 0.0319 to 0.02 mΩ, allowing a reduction of about 35% at the highest GNP content. Furthermore, an optimization following the new experimental model to decrease the electrical resistance of the graphene-based coating is presented. GRAPHICAL ABSTRACT: UF0001