Title: Investigation of the Nanostructure and Wear Properties of Physical Vapour Deposited CrCuN Nanocomposite Coatings
Authors: BAKER M.a.KENCH P.j.TSOTSOS CGIBSON PETERLEYLAND AMATTHEWS A
Citation: JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS vol. 23 no. 3 p. 423-433
Publisher: AMER INST PHYSICS
Publication Year: 2005
JRC Publication N°: JRC32212
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC32212
Type: Articles in Journals
Abstract: This article presents results on CrCuN nanocomposite coatings deposited by physical vapour deposition. The immiscibility of Cr containing a supersaturation of nitrogen and Cu offers the potential of depositing a predominantly metallic and therefore tough nanocomposite, composed of small CrN metallic and/or beta-Cr2N ceramic grains interdispersed in a minority Cu matrix. A range of CrCuN compositions have been deposited using a hot-filament enhanced unbalanced magnetron sputtering system. The stoichiometry and nanostructure have been studied by x-ray photoelectron spectroscopy, transmission electron microscopy, scanning electron microscopy, and x-ray diffraction. Hardness, wear resistance, and impact resistance have been determined by nanoindentation, reciprocating-sliding, and ball-on-plate high-frequency impact. Evolution of the nanostructure as a function of composition and correlations of the nanostructure and mechanical properties of the CrCuN coatings are discussed. A nanostructure comprised of 1–3 nm alpha-CrN and beta-Cr2N grains separated by intergranular regions of Cu gives rise to a coating with significantly enhanced resistance to impact wear.
JRC Institute:Institute for Health and Consumer Protection

Files in This Item:
There are no files associated with this item.


Items in repository are protected by copyright, with all rights reserved, unless otherwise indicated.