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Journal of Nanomaterials - Volume 2016 2016, Article ID 8306345, 14 pages -

Research Article

Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, Aleja Mickiewicza 30, 30-059 Krakow, Poland

Institute of Metallurgy and Materials Sciences, Polish Academy of Sciences, Ulica Reymonta 25, 30059 Krakow, Poland

Joanneum Research Forschungsges.m.b.H., Institute for Surface Technologies and Photonics, Functional Surfaces, Leobner Straße 94, 8712 Niklasdorf, Austria

Received 13 October 2015; Revised 8 January 2016; Accepted 12 January 2016

Academic Editor: Albano Cavaleiro

Copyright © 2016 M. Kot et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The paper presents research on coatings with advanced architecture, composed of a Cr-Cr2N ceramic-metal multilayer and graded carbon layers with varying properties from Cr-a-C:H to a-C:N. The microstructure of the coatings was analysed using transmission electron microscopy and Energy Dispersive Spectroscopy, the mechanical properties were tested by nanoindentation, spherical indentation, and scratch testing, and tribological tests were also conducted. The proper selection of subsequent layers in graded coatings allowed high hardness and fracture resistance to be obtained as well as good adhesion to multilayers. Moreover, these coatings have higher wear resistance than single coatings and a friction coefficient equal to 0.25.

Autor: M. Kot, Ł. Major, J. M. Lackner, K. Chronowska-Przywara, M. Janusz, and W. Rakowski



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