A new method for production of a copper coating reinforced with nano-diamonds

A copper coating reinforced with nano-diamonds was produced by the friction cladding (FC) method. The initial bulk material for the coating (a mixture of copper and nano-diamonds) was obtained by mechanical alloying followed by compaction. During the friction cladding, a flexible tool (rotated brush...

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Bibliographic Details
Published in:Journal of alloys and compounds 2007-05, Vol.434, p.689-692
Main Authors: Popov, V.A., Belevsky, L.S., Belevskaya, E.L., Gordon, Ia.M., Tulupov, S.A.
Format: Article
Language:English
Subjects:
Mechanical alloying
Metals
Nanostructured materials
Scanning electron microscopy (SEM)
Transmission electron microscopy (TEM)
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Summary:A copper coating reinforced with nano-diamonds was produced by the friction cladding (FC) method. The initial bulk material for the coating (a mixture of copper and nano-diamonds) was obtained by mechanical alloying followed by compaction. During the friction cladding, a flexible tool (rotated brush) transfers micro-particles from the bulk material to the surface to be coated. In this work, the coating was applied to cylindrical workpieces. The rotation regimes for a cylindrical workpiece and the flexible tool (brush) were investigated. The friction cladding method allowed obtaining a nano-diamond-reinforced copper coating with excellent adhesion to the base. Electron microscopy revealed no defects in the coating. The nano-diamond particles were evenly distributed in the copper matrix. The method developed yields coatings with improved wear resistance in comparison with non-reinforced coatings.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2006.08.337