Results 31 to 40 of about 2,081 (223)

Effects of Molecular Structure of Zinc Dialkyldithiophosphates on Tribological Properties of a Hydrogenated Amorphous Carbon Film under Boundary Lubrication

Tribology Online, 2017
The effects of the molecular structure of zinc dialkyldithiophosphates (ZDDPs) on the tribological properties of a hydrogenated amorphous carbon (a-C:H) film under boundary lubrication were investigated.
Hikaru Okubo, Seiya Watanabe, Chiharu Tadokoro, Yuki Hirata, Shinya Sasaki   +4 more
doaj   +1 more source

Impact of Boron-Containing Lubricant Additive on Three-Way Catalyst Reactivity and Physicochemical Properties

Lubricants, 2023
Boron-containing compounds are one of the lubricant additive options due to their suitable properties for additives and have been used as commercial lubricant additives.
Daekun Kim, Todd J. Toops, Ke Nguyen, Michael J. Lance, Jun Qu   +4 more
doaj   +1 more source

Tribological Bench and Engine Dynamometer Tests of a Low Viscosity SAE 0W-16 Engine Oil Using a Combination of Ionic Liquid and ZDDP as Anti-wear Additives

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, William C Barnhill, Hong eGao, Bassem A. Kheireddin, Brian L Papke, Huimin eLuo, Brian H West, Jun eQu   +7 more
doaj   +1 more source

TRIBOLOGICAL BEHAVIOUR AND CORROSION IMPROVEMENT OF THE CHROMIUM COATED PISTON RINGS BY GRAPHENE OXIDE [PDF]

Proceedings on Engineering Sciences, 2019
Corrosion and wear protection of metal surfaces is an important phenomenon in industrial applications in order to prevent material losses from the surfaces.
Doğuş ÖZKAN, Yaman ERARSLAN, Cem KINCAL, Egemen SULUKAN   +3 more
doaj   +1 more source

Dialkyldithiophosphate Acids (HDDPs) as Effective Lubricants of Sol–Gel Titania Coatings in Technical Dry Friction Conditions [PDF]

, 2011
The goal of this study was the investigation of the effectiveness of dialkyldithiophosphate acids (HDDPs) films in improving the tribological properties of thin, sol– gel derived titania coatings.
AM Barnes, Aneta Kisielewska, Ch McFadden, CJ Oss Van, D Brovelli, E Travers, ES Yamaguchi, ES Yamaguchi, GC Smith, H Onoe, H Spikes, I Piwoński, I Piwoński, Ireneusz Piwoński, JF Graham, K Ito, M Textor, MA Nicholls, MM Yusuf, NE Gallopoulos, R Hofer, SM Hsu, X Marguerettaz, Y Chen, Y-R Li   +24 more
core   +1 more source

Effects of Dispersant and ZDDP Additives on Fretting Wear [PDF]

Tribology Letters, 2020
AbstractThis paper examines the effect of dispersant and anti-wear additives on fretting wear in lubricated bearing steel contacts. Reciprocating sliding ball-on-flat fretting tests with a stroke length of 50 μm have been carried out on steel-to-steel contacts in both dry and lubricated conditions.
A. Kontou, R. I. Taylor, H. A. Spikes
openaire   +3 more sources

Tribology Properties of Synthesized Multiscale Lamellar WS₂ and Their Synergistic Effect with Anti-Wear Agent ZDDP

Applied Sciences, 2019
The microscale/nanoscale lamellar-structure WS2 particles with sizes of 2 µm and 500 nm were synthesized by solid-phase reaction method and characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM).
Na Wu, Ningning Hu, Jinhe Wu, Gongbo Zhou   +3 more
doaj   +1 more source

Influence of roughness on ZDDP tribofilm formation in boundary lubricated fretting [PDF]

, 2012
Influence of initial surface topography on tribofilm formation in ZDDP lubricated contact was analysed. A small displacement fretting tests with sinusoidal motion were carried out in classical sphere/plane configuration.
Burkinshaw M, Fujita H, Georges JM, K J Kubiak, Krupka I, Kubiak KJ, Kubiak KJ, Lord J, M Bigerelle, Olofsson J, Rapiejko C, Sauger E, Svahn F, T G Mathia   +13 more
core   +2 more sources

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, Koshi Adachi, Minoru Goto, Koji Kato   +3 more
doaj   +1 more source

Functional Electrolyte Additives: A Pinch of Salt/Solvent to an Electrolyte for High Energy Density Lithium-Ion and Lithium-Metal Batteries. [PDF]

Small
Electrolytes, often termed as the “blood” of battery play a decisive role in determining their performance metrics. This review thoroughly analyzes the role of functional electrolyte additives improving the performance and safety of Li‐ion/Li–metal batteries involving film formation, overcharge control, wide temperature and voltage operation ...
Senthil C, Subramani A, Gupta RK, Sofer Z.   +3 more
europepmc   +2 more sources