Journal ArticleDOI
Friction Reduction Benefits in Valve-Train System Using IF-MoS2 Added Engine Oil
Mauro Sgroi,Flavia Gili,Davide Mangherini,Imène Lahouij,Fabrice Dassenoy,I. Garcia,I. Odriozola,G. Kraft +7 more
TLDR
In this paper, the additive package of an SAE 5W30 engine oil was modified in order to stably disperse the nanoparticles and avoid counterproductive interactions with the other components of the package (antifoam, antioxidant, detergents, antiwear and antifriction additives).Abstract:
The development of new advanced lubricants is a key factor for the production of cleaner and more durable internal combustion engines. New improved antifriction and antiwear additives are required. The inclusion of nanoparticles known as solid lubricants (MoS2 and WS2 inorganic fullerenes) in fully formulated engine oils could help to improve the performance of the lubricant and of the engine.The AddNano Consortium, partially funded by the European Commission, investigated the possibility of including inorganic fullerenes in the formulation of engine oils. MoS2 nanoparticles integrated in the additive package of an SAE 5W30 engine oil showed a 50% reduction in the coefficient of friction in tribological lab-scale experiments. The nano-oil was formulated by modifying the additive package in order to stably disperse the nanoparticles and avoid counterproductive interactions with the other components of the package (antifoam, antioxidant, detergents, antiwear and antifriction additives).In the present work, ...read more
Citations
More filters
Journal ArticleDOI
Tribological performance of nanoparticles as lubricating oil additives
Mubashir Gulzar,Mubashir Gulzar,Haji Hassan Masjuki,Md. Abul Kalam,Mahendra Varman,Nurin Wahidah Mohd Zulkifli,Riaz Ahmad Mufti,Rehan Zahid,Rehan Zahid +8 more
TL;DR: In this paper, the main types of nanoparticles that have been used as lubricants additives and outlines the mechanisms by which they are currently believed to function and significant aspects of their tribological behavior such as dispersion stability and morphology are also highlighted.
Journal ArticleDOI
Ultrasmooth submicrometer carbon spheres as lubricant additives for friction and wear reduction.
Abdullah A. Alazemi,Vinodkumar Etacheri,Arthur D. Dysart,Lars-Erik Stacke,Vilas G. Pol,Farshid Sadeghi +5 more
TL;DR: The significantly better tribological performance of the hybrid lubricant is attributed to the perfectly spherical shape and ultrasmooth surface of carbon sphere additive filling the gap between surfaces and acting as a nanoscale ball bearing.
Journal ArticleDOI
Engine bench and road testing of an engine oil containing MoS2 particles as nano-additive for friction reduction
Mauro Sgroi,M. Asti,Flavia Gili,Fabio Alessandro Deorsola,Samir Bensaid,Debora Fino,G. Kraft,I. Garcia,Fabrice Dassenoy +8 more
TL;DR: In this article, the authors describe the results of the testing activities performed on a fully formulated engine oil incorporating MoS2 nanoparticles and demonstrate a reduction of 0.9% of fuel consumption with respect to the reference lubricant without nanoparticles.
Journal ArticleDOI
Friction and wear characteristics of vegetable oils using nanoparticles for sustainable lubrication
TL;DR: The non biodegradability associated with the mineral oils, ever increasing global demand for lubricants and limited crude oil resources have led to a paradigm shift of focus from non-renewable to renewable.
Journal ArticleDOI
Dispersion Stability and Lubrication Mechanism of Nanolubricants: A Review
TL;DR: A review of recent efforts and progress in the preparation of stable nanolubricants, including the evaluation of nanol lubricants dispersion stability, factors that affect dispersion instability, and techniques to enhance stability of nano-lubricants can be found in this paper.
References
More filters
Journal ArticleDOI
Mechanisms of ultra-low friction by hollow inorganic fullerene-like MoS2 nanoparticles
L. Cizaire,Béatrice Vacher,T. Le Mogne,Jean Michel Martin,Lev Rapoport,A. Margolin,Reshef Tenne +6 more
TL;DR: Inorganic Fullerene-like (IF)-MoS2 nanoparticles were tested under boundary lubrication and ultra-high vacuum (UHV) and were found to give an ultra-low friction coefficient in both cases compared to hexagonal MoS2 material as mentioned in this paper.
Journal ArticleDOI
Ultralow-friction and wear properties of IF-WS2 under boundary lubrication
Lucile Joly-Pottuz,Fabrice Dassenoy,Michel Belin,Béatrice Vacher,Jean Michel Martin,N. Fleischer +5 more
TL;DR: In this paper, inorganic fullerene-like WS2 nanoparticles used as additives in oil present interesting friction reducing and anti-wear properties, and a structural modification of WS2 particles into sheets during the friction test was evidenced to be the main effect at the origin of these properties.
Journal ArticleDOI
Understanding the Tribochemical Mechanisms of IF-MoS2 Nanoparticles Under Boundary Lubrication
Johny Tannous,Fabrice Dassenoy,Imène Lahouij,Thierry Le Mogne,Béatrice Vacher,Andrew Bruhács,Wolfgang Tremel +6 more
TL;DR: In this paper, a series of friction test experiments on different rubbing surfaces (steel, alumina, diamond-like carbon) were performed with Inorganic fullerene-(IF)-like nanoparticles made of metal dichalcogenides (IF-MoS2, IF-WS2).
Journal ArticleDOI
ZDDP and MoDTC interactions and their effect on tribological performance – tribofilm characteristics and its evolution
TL;DR: In this paper, the interaction between two key additives in current lubricants (ZDDP and MoDTC) and the effect on tribofilm formation and evolution under boundary lubrication is studied.
Journal ArticleDOI
IF-MoS2 based lubricants: Influence of size, shape and crystal structure
TL;DR: In this paper, the influence of the crystal structure of IF-MoS2 nanoparticles on the lubricating properties of the fullerenes added to a synthetic base oil was studied.