Novel cold spray for fabricating graphene-reinforced metal matrix composites

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TitreNovel cold spray for fabricating graphene-reinforced metal matrix composites
Type de publicationJournal Article
Year of Publication2017
AuteursYin S, Zhang Z, Ekoi EJ, Wang JJing, Dowling DP, Nicolosi V, Lupoi R
JournalMATERIALS LETTERS
Volume196
Pagination172-175
Date PublishedJUN 1
Type of ArticleArticle
ISSN0167-577X
Mots-clésCold spray, Copper, Friction coefficient, Graphene nanoplates (GNPs), Metal matrix composites (MMCs), Raman spectrum
Résumé

In this paper, cold spray in conjunction with powder ball milling was used to fabricate GNP-reinforced copper MMC coatings without crossing materials' melting points. As a result, non-agglomerated and uniformly-distributed GNPs were included in the cold sprayed MMC powders and coating. No phase change and oxidation occurred during the coating fabrication. The friction coefficient of GNP-reinforced MMC coating reduced by approximately 20% compared to bulk copper. The cold sprayed MMCs also resulted in lower friction coefficient than spark plasma sintered MMCs. (C) 2017 Elsevier B.V. All rights reserved.

DOI10.1016/j.matlet.2017.03.018