Results 71 to 80 of about 957 (204)

New insights on the decomposition mechanism of Molybdenum DialkyldiThioCarbamate (MoDTC): a Raman spectroscopic study [PDF]

, 2016
Molybdenum DialkyldiThioCarbamate (MoDTC) is a friction modifier that has been used in automotive engines for many years. However, its exact decomposition mechanism within tribocontacts is not fully understood.
Khaemba, DN, Morina, A, Neville, A
core   +1 more source

Investigation of 1,3-Diketone and Nano-Copper Additives for Enhancing Boundary Lubrication Performance

Journal of Marine Science and Engineering
In this work, 1,3-diketone synthesized via the Claisen condensation method and nano-copper particles modified by the Brust–Schiffrin method were added into a commercial marine medium-speed diesel engine cylinder piston oil to evaluate their effects on ...
Jingsi Wang, Dezhi Teng, Jiawei Fan, Xi Zhang, Qihang Cui, Ke Li, Pay Jun Liew   +6 more
doaj   +1 more source

Thermal and Hydrolytic Stability of Dithiophophoric Acids Stabilité thermique et hydrolytique des acides dithiophosphoriques

Oil & Gas Science and Technology, 2006
The thermal and hydrolytic stability of dibutyl-, diisobutyl- and diisooctyldithiophosphoric acids have been studied in the range of 40-80°C. The reaction progress was followed by the H2S evolution kinetics in volumetric equipment at constant pressure ...
Ivanov S. K., Karshalykov C., Litovchenko N. R., Kupko G. G.   +3 more
doaj   +1 more source

Phosphorus poisoning during wet oxidation of methane over Pd@CeO2/graphite model catalysts [PDF]

, 2017
10siThe influence of phosphorus and water on methane catalytic combustion was studied over Pd@CeO2 model catalysts supported on graphite, designed to be suitable for X-ray Photoelectron Spectroscopy/Synchrotron Radiation Photoelectron Spectroscopy (XPS ...
Adijanto, Benissad-Aissani, Cargnello, Cargnello, Cargnello, Christou, Christou, Christou, Ciuparu, Ciuparu, Ciuparu, Ciuparu, Colussi, Colussi, Farrauto, He, Heo, Johánek, Kevin C. Prince, La Fontaine, Larese, Larese, Larese, Larese, Lin, Lopez Granados, Martín, Matam, Matteo Monai, Michele Melchionna, Monai, Morales, Mowery, Mullins, Nataliya Tsud, Paolo Fornasiero, Penner, Persson, Peter Kúš, Raymond J. Gorte, Schwartz, Skála, Tiziano Montini, Tomáš Duchoň, Tsud, Uy, Vladimir Matolin, Wang, Xu, Zhang, Zhang, Özmen-Monkul   +51 more
core   +1 more source

XPS study of the influence of temperature on ZnDTP tribofilm composition [PDF]

, 2018
Antiwear additives, such as zinc dialkyldithiophosphate (ZnDTP), find application in many different industrial sectors. Although it is understood that certain ZnDTP concentrations need to be used to achieve an effective antiwear performance, there has ...
Heuberger, Roman, Rossi, Antonella, Spencer, Nicholas D.   +2 more
core  

Effect of steel hardness on soot wear

, 2017
Due to incomplete combustion, high levels of soot can accumulate in engine lubricants between drain intervals. This soot can promote wear of engine parts such as timing chains and cam followers.
Kontou, A, Southby, M, Spikes, HA
core   +1 more source

Effect of Lubricant Additives on the WDLC Coating Structure When Tested in Boundary Lubrication Regime [PDF]

, 2015
Improvements in coating deposition technology enable the mass production of high-quality diamond-like carbon (DLC) coatings at an industrial scale and also increase their use in lubricated contacts.
Brown, A, Morina, A, Neville, A, Ransom, P, Yang, L   +4 more
core   +1 more source

The synergistic effect of novel anti-wear additive 1,3,4-thiadiazole mixed ammonium salt and MoDTC on tribological properties of FeCoCrNiMn alloy

Journal of Materials Research and Technology
To meet the increasingly stringent environmental requirements, we propose incorporating nitrogen-containing compounds into the anti-wear additives in order to minimize the use of sulfur and phosphorus elements.
Dongya Zhang, Xiaoyu Suo, Jingjie Wang, Yunfei Wang, Fengqi Fan, Liping Wang   +5 more
doaj   +1 more source

Pressure Dependence of ZnDTP Tribochemical Film Formation: A Combinatorial Approach [PDF]

, 2018
Combinatorial testing has been performed on zinc dialkyldithiophosphate (ZnDTP)-containing lubricants, to investigate the effects of contact pressure on the formation of tribochemical films.
Heuberger, Roman, Rossi, Antonella, Spencer, Nicholas   +2 more
core  

Exploring the topological landscape exhibited by Binary Zinc-triad 1,1-dithiolates [PDF]

, 2018
The crystal chemistry of the zinc-triad binary 1,1-dithiolates, that is, compounds of xanthate [−S2COR], dithiophosphate [−S2P(OR)2], and dithiocarbamate [−S2CNR2] ligands, is reviewed.
Tiekink, Edward R. T. *
core   +1 more source