Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/7754
Title: Mechanical and high pressure tribological properties of nanocrystalline Ti(N,C) and amorphous c: h nanocomposite coatings
Authors: Constantinides, Georgios 
Tsotsos, Chrysostomos 
Polychronopoulou, Kyriaki 
Major Field of Science: Engineering and Technology
Keywords: Tribology;Friction;Coatings;Nanocomposites (Materials)
Issue Date: Jul-2010
Source: Diamond and Related Materials, 2010, vol. 19, no. 7-9, pp. 960-963
Volume: 19
Issue: 7-9
Start page: 960
End page: 963
Journal: Diamond and Related Materials 
Abstract: This paper reports on the mechanical and high pressure tribological properties of nanocrystalline (nc-) Ti(N,C)/amorphous (a-) C:H deposited, using low temperature (∼ 200 °C) DC reactive magnetron sputtering. The mechanical properties are affected by the nc-Ti(N,C)/a-C:H phase fraction ratio. For increasing C contents (from 31 to 47 at.%) an increase of the a-C:H phase content and a degradation of the nanocrystalline phase occurs leading to a reduction in nanoindentation hardness (H) values (from 15 to 9 GPa) and reduced modulus (Er) values (from 150 to 80 GPa). A strong correlation between H/E ratio and wear performance was exhibited by the coatings. The synthesized coatings survived up to 100 m sliding distance when tested using pin-on-disc sliding configuration at > 4.5 GPa contact pressures and the measured friction coefficient values were similar for all films (μ ∼ 0.21–0.25).
ISSN: 1879-0062
DOI: 10.1016/j.diamond.2010.02.036
Rights: © Elsevier
Type: Article
Affiliation : University of Cyprus 
University of Illinois at Urbana-Champaign 
University of Surrey 
Cyprus University of Technology 
Robert Bosch GmbH 
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