Results 91 to 100 of about 2,042 (207)

Phosphorus deposition on a three-way catalyst under accelerated ageing conditions [PDF]

, 2011
Degradation of catalyst performance with time is described as ageing. There are two significant ageing mechanisms: poisoning and sintering. Experimental data on ageing have been obtained on an engine test bed using a specially designed catalyst core ...
Benjamin, Stephen F., Brogan, M., Collin, T., Disdale, W., Roberts, Carol A., Wei, J.   +5 more
core   +1 more source

Friction and wear phenomena of vegetable oil based lubricants with additives at severe sliding wear conditions [PDF]

, 2017
The tribological responses of palm oil and soybean oil, combined with two commercial antiwear additives (zinc dialkyl dithiophosphate and boron compound), were investigated at a lubricant temperature of 100 °C and under severe contact conditions in a ...
Adli Bahari, Ajayi O. O., Andersson P., Azhari M. A., Fox N., Houwink R., Hutchings I. M., Kirk R. E., Mitutoyo, Pawlak Z., Reeves C. J., Roger Lewis, Shturmakov A. J., Singer I. L., Stachowiak G. W., Talib N., Talib N., Tom Slatter, Zahid R.   +18 more
core   +1 more source

Additive Adsorption on DLC Coatings in Static and Tribological Conditions Using Neutron Reflectometry

Frontiers in Mechanical Engineering, 2019
Neutron reflectometry (NR) has proven to be an important analytical tool for investigations of the adsorption in boundary lubrication for both simple and complex additives by using either deuterated additives or the base carrier lubricant.
Lucija Čoga, Rok Simič, Thomas Geue, Mitjan Kalin   +3 more
doaj   +1 more source

Competitive Adsorption of Ionic Liquids Versus Friction Modifier and Anti-Wear Additive at Solid/Lubricant Interface—Speciation with Vibrational Sum Frequency Generation Spectroscopy

Lubricants, 2020
A modern lubricant contains various additives with different functionalities and the interactions or reactions between these additives could induce synergistic or antagonistic effects in tribological performance.
Dien Ngo, Xin He, Huimin Luo, Jun Qu, Seong H. Kim   +4 more
doaj   +1 more source

An Investigation of Antioxidant Properties of Zinc and Molybdenum Dithiocarbamates in Hydrocarbons [PDF]

Journal of Petroleum Science and Technology, 2016
The oxidation and degradation of hydrocarbons at high temperature and pressure in the presence of oxygen is one of the common oil product problems.
Marzieh Shekarriz
doaj   +1 more source

Experimental Evaluation of Solar-Powered Desalination Ponds in Waste Water Treatment [PDF]

E3S Web of Conferences
The purpose of this research is to examine a desalination pond that is experimental in size and uses solar energy for its heating. The solar pond is the major components of a zero discharge desalinate progression (ZDDP), as shown below.
Sengottaiyan M., Inesh A., Manokar R., Manova Arputharaj R., Vijayaragavan R.   +4 more
doaj   +1 more source

Transient processes of MoS₂ tribofilm formation under boundary lubrication [PDF]

, 2016
A tribochemistry study that involves the application of Raman spectroscopy surface analysis has been undertaken to understand the time-dependent tribochemical reactions, for lubrication by Molybdenum dialkyl-dithiocarbamate (MoDTC) occurring in boundary ...
Morina, A, Neville, A, Rai, Y
core   +1 more source

Towards Phosphorus Free Ionic Liquid Anti-Wear Lubricant Additives

Lubricants, 2016
The development of improved anti-wear additives would enable the use of lower viscosity oils that would lead to improved efficiency. Ionic liquids have the potential to be this type of new anti-wear additive.
Anthony E. Somers, Ruhamah Yunis, Michel B. Armand, Jennifer M. Pringle, Douglas R. MacFarlane, Maria Forsyth   +5 more
doaj   +1 more source

Material‐Dependent Antagonistic Effects between Soot and ZDDP

Advanced Materials Interfaces, 2020
AbstractWhile soot in engine oil is known to accelerate the wear of diesel and gasoline direct‐injection compression‐ignition engines, there is a lack of consensus on the wear mechanism though various hypotheses have been proposed in the literature. Particularly, some recently observed antagonistic effects between soot and a common lubricant antiwear ...
Chanaka Kumara, Harry M. Meyer, Jun Qu
openaire   +2 more sources

Impact of Soot on Internal Combustion Engine Lubrication—Oil Condition Monitoring, Tribological Properties, and Surface Chemistry

Lubricants
In the study at hand, a systemic investigation regarding the tribochemical effects of crankcase soot is presented. Sooted oils were generated via an engine dynamometer test. Both conventional as well as advanced oil condition monitoring methods indicated
Adam Agocs, Marcella Frauscher, Andjelka Ristic, Nicole Dörr   +3 more
doaj   +1 more source