Journal
MATERIALS LETTERS
Volume 196, Issue -, Pages 172-175Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2017.03.018
Keywords
Cold spray; Graphene nanoplates (GNPs); Metal matrix composites (MMCs); Raman spectrum; Friction coefficient; Copper
Funding
- CRANN Advanced Microscopy Laboratory of Trinity College Dublin
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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.
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