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|Title:||Mechanical and high pressure tribological properties of nanocrystalline Ti(N,C) and amorphous c: h nanocomposite coatings||Authors:||Constantinides, Georgios
|Keywords:||Tribology;Friction;Coatings;Nanocomposites (Materials)||Category:||Nano-technology||Field:||Engineering and Technology||Issue Date:||2010||Publisher:||Elsevier||Source:||Diamond and Related Materials, 2010, Volume 19, Issue 7-9, Pages 960-963||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).||URI:||http://ktisis.cut.ac.cy/handle/10488/7754||ISSN:||09259635||DOI:||http://dx.doi.org/10.1016/j.diamond.2010.02.036||Rights:||© 2010 Elsevier B.V||Type:||Article|
|Appears in Collections:||Άρθρα/Articles|
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