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Tribological behavior of nanocomposite coatings based on fullerene-like structures
Stockholm University, Faculty of Science, Department of Physics.
2011 (English)In: Vacuum, ISSN 0042-207X, E-ISSN 1879-2715, Vol. 85, no 12, 1087-1092 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents a new group of nanocomposite coatings based on integrating inorganic fullerene-like material (IFLM) structures into conventional coating matrices. Such coatings have been developed within the scope of the European funded FOREMOST project (FP6-NMP3-CT-2005-515840). Regarding the synthesis of these nanocomposite coatings based on fullerene-like components, two alternative routes were explored: introducing preformed IFLMs into the coating deposition process or forming the fullerene-like components in situ during the coating deposition process. Both methods have been demonstrated to be technically feasible, depending on the nature of the coating matrix or the desired fullerene-like structure. These new materials allow some independent control of tribological properties usually known as antagonists (very high load bearing capacity with a very low friction coefficient). In the case of unidirectional movement, under dry conditions, the best coatings developed in FOREMOST displayed a coefficient of friction in air within the range 0.04-0.10, depending on the degree of humidity and the test conditions. Pure sliding laboratory tests indicate that for some industrial applications fullerene-like nanocomposite coatings can give significant reductions in wear and friction coefficient when compared to similar coatings without fullerene-like components. The lubrication mechanisms through which these fullerene-like structures improve friction and prevent wear are also discussed in this paper.

Place, publisher, year, edition, pages
2011. Vol. 85, no 12, 1087-1092 p.
Keyword [en]
Inorganic Fullerene-like materials, Nanocomposite coatings, Friction and Wear
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-67567DOI: 10.1016/j.vacuum.2010.11.019ISI: 000292678900010OAI: oai:DiVA.org:su-67567DiVA: diva2:470607
Note
authorCount :4Available from: 2011-12-29 Created: 2011-12-29 Last updated: 2017-12-08Bibliographically approved

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