Journal of Nanomedicine & Nanotechnology

Superhard nanostructured functional materials for green tribology

19^th International Conference on Nanotechnology and Expo

November 13-14, 2017 | Atlanta, USA

V A Levchenko, I A Buyanovskii and V A Matveenko

Lomonosov Moscow State University, Russia
RAS, Russia

Posters & Accepted Abstracts: J Nanomed Nanotechnol

Abstract:

Our understanding of mechanism of lubricating action of boundary layers can be essentially extended on the base of multidisciplinary approach to the problem. Recently, the concept of �??green tribology�?� regarding as �??the science and technology of the tribological aspects of ecological balance and of environmental and biological impacts�?� was introduced. The field of green tribology includes tribological technology that mimics living nature (biomimetic surfaces) and thus is expected to be environmentally friendly, the control of friction and wear that is of importance for energy conservation and conversion, environmental aspects of lubrication and surface modification techniques and tribological aspects of green applications such as wind-power turbines or another tribological devices. A new type superhard functional materials of diamond like carbon (DLC) namely nanostructured coating-orientants and PVD process is developed to produce thick (DLC+AlTiN) coating on any metal or ceramic substrates. The new type of the functional materials has no analogs in triboengineering. Authors have made many theoretical and experimental studies directed to optimal synthesis parameters finding, coatings structure and tribological characteristics analyzing and establishing correlation between the mentioned factors (the triad �??synthesis parameters- structure-performances�?�). Superhard nanocomposite and nanostructured materials were designed to respond to changing environmental conditions by self-adjustment of their surface properties to maintain good tribological performance in any environment. Unique friction and wear performance was demonstrated by testing in controlled humidity air, dry nitrogen vacuum and in environmental cycling. The findings suggest that the carbon coatings with orientating effect on boundary layers are advantageous for improving antifriction characteristics and for governing processes of boundary lubrication. New type superhard of nanostructured functional materials can be recommended for the application on the countertops of the responsible steel elements of friction pairs lubricated with mineral or synthetic oils.