Results 41 to 50 of about 349 (146)

Synergistic Effect of Acrylate of Dialkyl Dithiophosphoric Acid Combined with Molybdenum Dialkyl Dithiocarbamate as Additives in Gear Oil

Lubricants
With the aim of improving the tribological properties of low-viscosity gear oil for automobiles, an acrylate of dialkyl dithiophosphoric acid (ADDP) with strong polar groups was synthesized.
Minghao Ding, Yimin Mo, Hong Zhang, Qingchun Liu   +3 more
doaj   +1 more source

MoDTC-induced wear acceleration mechanism of a hydrogenated amorphous carbon diamond-like carbon film

Nihon Kikai Gakkai ronbunshu, 2018
The wear acceleration mechanism of a DLC film lubricated with MoDTC solution was investigated by using in-situ and ex-situ analytical techniques: Raman spectroscopy, SEM-EDS, ToF-SIMS, and nano-indenter. From the results, the structural change of the DLC
Hikaru OKUBO, Hiroaki MAEDA, Shouhei KAWADA, Chiharu TADOKORO, Shinya SASAKI   +4 more
doaj   +1 more source

Interactions of Ethanol with Friction Modifiers in Model Engine Lubricants

Lubricants, 2019
When employed as an engine fuel, ethanol can accumulate in the lubricant during use. Previous work has shown that ethanol contamination affects friction and elastohydrodynamic lubrication (EHL) film formation, and also the growth and stability of anti ...
Henara L. Costa, Hugh Spikes
doaj   +1 more source

Comparing Tribochemical Film Formation and Durability at Steel and CrN Coating Interface in Boundary Lubrication

Tribology Online, 2010
One of the main challenges that engine oil manufacturers are now facing is to reduce friction losses while at the same time increasing the durability of engine components.
Ardian Morina, Tabassumul Haque, Anne Neville   +2 more
doaj   +1 more source

Friction and Wear Characteristics of Molybdenum Dithiocarbamate with Alloy Steels

Tribology Online, 2006
The effects of composition of alloy steel on the friction and wear characteristics of molybdenum dithiocarbamate MoDTC were studied in reciprocated sliding contact using a ball-on-plate type tester. The oil used was squalane of a pure hydrocarbon.
Hiroyoshi Tanaka, Masaaki Hashimoto, Seigo Gondo, Yuji Yamamoto   +3 more
doaj   +1 more source

The role of MoDTC tribochemistry in engine tribology performance. A Raman microscopy investigation [PDF]

Tribology International, 2020
Abstract In order to tackle the new challenges towards the reduction of carbon emissions in transport industry, the present work aims to understand the effect of the friction modifier (FM) molybdenum dithiocarbamate (MoDTC) on the performance of an automobile engine.
Cayetano Espejo, Chun Wang, Benoît Thiébaut, Catherine Charrin, Anne Neville, Ardian Morina   +5 more
openaire   +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

Effect of Nanodiamonds on Friction Reduction Performance in Presence of Organic and Inorganic Friction Modifiers

Lubricants
The strive to reduce harmful emissions from transport has resulted in an increased emphasis on minimising friction in lubricated contacting components to improve the energy efficiency of automotive engines.
A. K. Piya, L. Yang, N. Emami, A. Morina
doaj   +1 more source

Prediction of Pressure-Viscosity Coefficient of Mixtures

Tribology Online, 2008
The pressure-viscosity coefficient α is one of the most important property for EHL condition, however its measurement has difficulty. Therefore authors attempt to predict α for blend oils by using the relationship between pressure-viscosity ...
Shinichiro Hayashi, Kazuo Masuhara, Sobahan Mia, Shigeki Morita, Nobuyoshi Ohno   +4 more
doaj   +1 more source

Wear Characteristics Caused by Ti₃AlC₂ Particles under Impact-Sliding Conditions in Marine Engine

Journal of Marine Science and Engineering
With the marine industry’s demands for carbon reduction and increased reliability, the friction and wear performance of marine engines is becoming increasingly important.
Jie Liu, Yan Shen, Zhixiang Liu, Baihong Yu, Jinghao Qu, Leize Li, Guogang Zhang   +6 more
doaj   +1 more source