Novel copper immersion coating on magnesium alloy AZ91D in an alkaline bath

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DOIResolve DOI: http://doi.org/10.1007/BF02774514
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TypeArticle
Journal titleJournal of Coatings Technology and Research
ISSN1935-3804
Volume3
Issue3
Pages241246; # of pages: 6
Subjectcopper immersion coating; alkaline bath; magnesium alloy
AbstractCopper immersion coating of magnesium alloys has, to date, been conducted only in acidic baths. This article describes a novel alkaline bath for copper immersion coating on AZ91D magnesium alloy. Prior to the coating process, a chemical etching process of the magnesium substrate was optimized using orthogonal experimental methodology. The copper immersion coating was then investigated with regard to the effect of pH and fluoride content in the deposition bath. It was revealed during the coating process that an increase of pH and fluoride content led to a surface film formation on the magnesium substrate. The surface film formation occurred simultaneously with copper reduction, rendering a controlled magnesium dissolution, thereby a controlled copper deposition. With optimized conditions of chemical etching and immersion coating processes, uniform copper deposits were achieved.
Publication date
LanguageEnglish
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NPARC number21273024
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Record identifiera811a3ae-b77c-4eb7-90b0-fc31fbd4edf9
Record created2014-12-08
Record modified2016-05-09
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