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The electrodeposition of composite coatings: diversity, applications and challenges

The electrodeposition of composite coatings: diversity, applications and challenges
The electrodeposition of composite coatings: diversity, applications and challenges
A wide range of coatings can be produced by incorporating particles into an electrodeposit. The matrix may be a metal, conductive polymer or conductive ceramic while the particle can be metallic, polymeric, ceramic or combinations of spheroidal, irregular or layered inclusions. Nanostructured, gradient, multilayer and sandwich layer deposit further widen possibilities. Electrochemical approaches to the deposition of composite coatings offer the benefits of good control over deposition rate (hence thickness), coating composition and deposit properties. Both faradaic electrodeposition and electrophoresis are usually involved. This review focuses on nanosized inclusions in a metal matrix over the last two decades. Interactions between bath composition, particle dispersion, operational variables and resultant deposit properties are poorly documented. Our understanding of the mechanism of composite deposition remains patchy, despite progress and computer models are scarce. Electrode geometry, electrolyte hydrodynamics and current distribution remain poorly treated. Markets in electronics, surface engineering, aerospace, corrosion protection and electrochemical energy conversion have been stimulated by newer uses as self-cleaning, superhydrophobic and biocompatible surfaces. Challenges to be met by further R & D are prioritised.
electroplating, inclusions, electrolyte additives, mechanism, metal matrix composite, modelling, surfactants
2451-9103
Walsh, Frank
309528e7-062e-439b-af40-9309bc91efb2
Wang, Shuncai
8a390e2d-6552-4c7c-a88f-25bf9d6986a6
Zhou, Nan
f9796c96-e7ef-49a8-a07a-757aa042bb76
Walsh, Frank
309528e7-062e-439b-af40-9309bc91efb2
Wang, Shuncai
8a390e2d-6552-4c7c-a88f-25bf9d6986a6
Zhou, Nan
f9796c96-e7ef-49a8-a07a-757aa042bb76

Walsh, Frank, Wang, Shuncai and Zhou, Nan (2020) The electrodeposition of composite coatings: diversity, applications and challenges. Current Opinion in Electrochemistry. (In Press)

Record type: Article

Abstract

A wide range of coatings can be produced by incorporating particles into an electrodeposit. The matrix may be a metal, conductive polymer or conductive ceramic while the particle can be metallic, polymeric, ceramic or combinations of spheroidal, irregular or layered inclusions. Nanostructured, gradient, multilayer and sandwich layer deposit further widen possibilities. Electrochemical approaches to the deposition of composite coatings offer the benefits of good control over deposition rate (hence thickness), coating composition and deposit properties. Both faradaic electrodeposition and electrophoresis are usually involved. This review focuses on nanosized inclusions in a metal matrix over the last two decades. Interactions between bath composition, particle dispersion, operational variables and resultant deposit properties are poorly documented. Our understanding of the mechanism of composite deposition remains patchy, despite progress and computer models are scarce. Electrode geometry, electrolyte hydrodynamics and current distribution remain poorly treated. Markets in electronics, surface engineering, aerospace, corrosion protection and electrochemical energy conversion have been stimulated by newer uses as self-cleaning, superhydrophobic and biocompatible surfaces. Challenges to be met by further R & D are prioritised.

Text
Final FCW 2020 CO Review - Accepted Manuscript
Restricted to Repository staff only until 24 January 2022.
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More information

Accepted/In Press date: 24 January 2020
Keywords: electroplating, inclusions, electrolyte additives, mechanism, metal matrix composite, modelling, surfactants

Identifiers

Local EPrints ID: 437544
URI: http://eprints.soton.ac.uk/id/eprint/437544
ISSN: 2451-9103
PURE UUID: 7dfba4d9-019c-478c-846c-39504d97aa98

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Date deposited: 04 Feb 2020 18:02
Last modified: 04 Feb 2020 18:02

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