Results 31 to 40 of about 155 (134)

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, Martin Priest, Anne Neville, Ardian Morina, Xin Xia, Chris P. Warrens, Marc J. Payne   +6 more
doaj   +1 more source

Analysis of Wear Track on DLC Coatings after Sliding with MoDTC-Containing Lubricants

Tribology Online, 2017
Wear of DLC coating has been great concern in DLC/Steel sliding surface lubricated by molybdenum dithiocarbamate (MoDTC) containing lubricants. However, in order to design lubrication system with DLC and MoDTC, the mechanism of this issue is needed to be
Kenji Ohara, Kiyoshi Hanyuda, Yasushi Kawamura, Kentaro Omura, Imari Kameda, Noritsugu Umehara, Hiroyuki Kousaka   +6 more
doaj   +1 more source

A Theoretical Investigation on the Dynamic Behavior of Molybdenum Dithiocarbamate Molecule in the Engine Oil Phase

Tribology Online, 2008
We investigated the decomposition reaction mechanism of a molybdenum dithiocarbamate (MoDTC) molecule using computational chemistry methods: density functional theory and hybrid quantum chemical/classical molecular dynamics methods.
Tasuku Onodera, Yusuke Morita, Ai Suzuki, Riadh Sahnoun, Michihisa Koyama, Hideyuki Tsuboi, Nozomu Hatakeyama, Akira Endou, Hiromitsu Takaba, Carlos A. Del Carpio, Momoji Kubo, Takatoshi Shin-yoshi, Noriaki Nishino, Atsushi Suzuki, Akira Miyamoto   +14 more
doaj   +1 more source

Tribological evaluation of passenger car engine oil: Effect of friction modifiers

Results in Engineering, 2022
The tribo-performance of passenger car engine oil with three friction modifiers (organic and inorganic) has been experimentally evaluated using benchtop tribometers.
Mukesh Kumar Dubey, Rameshwar Chaudhary, Ramu Emmandi, Sarita Seth, Rajendra Mahapatra, A.K. Harinarain, S.S.V. Ramakumar   +6 more
doaj   +1 more source

Formation of Nano Interface by Sliding between Hard Coatings and Metals in MoDTC Contained Oil

Tribology Online, 2022
The viscosity of motor oil gets lower in order to decrease resistance at region of the fluid lubrication. On the other hands, this causes increasing of friction at the boundary lubrication region.
Ryo Koike, Atsushi Suzuki, Kazue Kurihara, Koshi Adachi   +3 more
doaj   +1 more source

Synergistic tribological effect between polyisobutylene succinimide-modified molybdenum oxide nanoparticle and zinc dialkyldithiophosphate for reducing friction and wear of diamond-like carbon coating under boundary lubrication

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, Ningning Song, Shengmao Zhang, Yujuan Zhang, Laigui Yu, Pingyu Zhang   +5 more
doaj   +1 more source

Regression Analysis of the Effect of Bias Voltage on Nano‐ and Macrotribological Properties of Diamond‐Like Carbon Films Deposited by a Filtered Cathodic Vacuum Arc Ion‐Plating Method

Journal of Nanomaterials, Volume 2014, Issue 1, 2014., 2014
Diamond‐like carbon (DLC) films are deposited by bend filtered cathodic vacuum arc (FCVA) technique with DC and pulsed bias voltage. The effects of varying bias voltage on nanoindentation and nanowear properties were evaluated by atomic force microscopy.
Shojiro Miyake, Takanori Shindo, Masatoshi Miyake, Tianchang Hu   +3 more
wiley   +1 more source

Synergistic Effects of MoDTC and ZDTP on Frictional Behaviour of Tribofilms at the Nanometer Scale [PDF]

Tribology Letters, 2004
The layered structure and the rheological properties of anti-wear films, generated in a rolling/sliding contact from lubricants containing zinc dialkyldithiophosphate (ZDTP) and/or molybdenum dialkyldithiocarbamate (MoDTC) additives, have been studied by dynamic nanoindentation experiments coupled with a simple modelling of the stiffness measurements ...
Bec, Sandrine, Tonck, André, Georges, Jean-Marie, Roper, Glyn   +3 more
openaire   +2 more sources

Additives for Improving the Fuel Economy of Diesel Engine Systems

Tribology Online, 2010
Due to tightening CO2 emission regulations and increasing fuel prices, fuel economy has become one of the greatest issues facing society today. Although molybdenum dithiocarbamate (MoDTC) is a well-known friction modifier for gasoline engines, it has ...
Kenji Yamamoto, Akihiro Kotaka, Kazuhiro Umehara   +2 more
doaj   +1 more source

Tribochemistry and EP Activity Assessment of Mo‐S Complexes in Lithium‐Base Greases

Advances in Tribology, Volume 2008, Issue 1, 2008., 2008
The blends of bis(1,5‐diaryl‐2,4‐dithiomalonamido)dioxomolybdenum(VI) complexes in lithium‐base grease are evaluated for their extreme pressure activity in a “four‐ball test” using 12.7 mm diameter alloy steel ball specimen. The additive, bis(1,5‐di‐p‐methoxyphenyl‐2,4‐dithiomalonamido)dioxomolybdenum(VI) and bis(1,5‐di‐p‐chloro‐phenyl‐2,4 ...
Tarunendr Singh, Si-Wei Zhang
wiley   +1 more source