Results 31 to 40 of about 207 (164)
Friction Modelling in Boundary Lubrication Considering the Effect of MoDTC and ZDDP in Engine Oils
Tribology Online, 2011 A predictive friction model has been developed in boundary lubrication conditions to understand the sensitivity of the model to molybdenum dithiocarbamate (MoDTC), a friction modifying additive and zinc dialkyldithiophosphate (ZDDP), an antiwear additive
Rupesh Roshan +6 more
doaj +1 more source
Materialwissenschaft und Werkstofftechnik, Volume 51, Issue 7, Page 1009-1030, July 2020., 2020 Tribochemical reactive formed layers on diamond‐like carbon (DLC) after tribological testing were analyzed. Hereby, the formation of zinc, molybdenum, sulfur and phosphorus containing reaction layers could be identified using Raman spectroscopy and scanning electron microscopy.
K. Bobzin +3 more
wiley +1 more source
Frontiers in Mechanical Engineering, 2015 We have previously reported an oil-miscible phosphonium-organophosphate ionic liquid (IL) with effective anti-wear functionality when added to a base oil by itself or combined with a conventional zinc dialkyldithiophosphate (ZDDP) for a synergistic ...
William C Barnhill +7 more
doaj +1 more source
Zinc Dialkyldithiophosphate Additive Adsorption on Carbon Black Particles [PDF]
Tribology Letters, 2018 Soot is known to cause high wear in engine components and this is a problem with engine oils between extended drain intervals. Although several wear mechanisms have been suggested, exact soot-induced wear mechanisms are still not fully understood. This study aims to investigate the additive adsorption mechanism (specifically anti-wear additive) on ...
Motamen Salehi, F, Morina, A, Neville, A
openaire +3 more sources
Lubrication Science, Volume 32, Issue 4, Page 183-191, June 2020., 2020 Abstract In this study, the decomposition of a multialkylated cyclopentane (MAC) and a perfluoro‐poly‐ether (PFPE) lubricant was investigated in a ball‐on‐disc sliding test under vacuum and in a rolling contact fatigue (RCF) test on full bearings. In situ mass spectrometry was conducted to study the tribochemical formation of hydrogen in a steel‐on ...
Dominik Kürten +2 more
wiley +1 more source
The Distribution of Zinc in Low-Friction ZDDP Tribofilm on Iron Oxide
Tribology Online, 2009 To develop a low-friction and low-wear tribo-system for engine components, the authors have been studying the ZDDP tribofilm formed on iron oxide. Tribotests on iron-oxide / steel sliding pairs were performed in PAO with 1 mass% ZDDP.
Kosuke Ito +3 more
doaj +1 more source
Friction, 2023 Organic molybdenum lubricant additive like molybdenum dialkyl dithiocarbamate (MoDTC) can cause wear acceleration of diamond-like carbon (DLC) coating coupled with steel under boundary lubrication, which hinders its industrial application.
Shuoshuo Chen +5 more
doaj +1 more source
Artificial Aging Experiments of Neat and Contaminated Engine Oil Samples
Lubricants, 2021 This study highlights how the results from an artificial engine oil aging method compare to used engine oil samples collected from a vehicle fleet. Additionally, this paper presents the effect of contaminating the oil during aging with synthetic fuel ...
András Lajos Nagy +2 more
doaj +1 more source
Friction, 2017 To enhance the lubricating and extreme pressure (EP) performance of base oils, two types of oil-soluble ionic liquids (ILs) with similar anion albeit dissimilar cations were synthesized. The physical properties of the prepared ILs were measured.
Guowei Huang +5 more
doaj +1 more source
Lubricants, 2023 This work investigates the influence of altered engine oil on the tribological performance, focusing in particular on wear and interconnected tribofilm formation.
Martin Jech +4 more
doaj +1 more source