Results 21 to 30 of about 3,483 (260)

Lubricant and Lubricant Additives

open access: yes, 2021
Lubricants have been used by humans for thousands of years in their simple machines such as wheel-axle bearings and sledges. Modern machines are much more complicated and are composed of many different machine elements which are in relative motion under varying loads, speeds and temperatures.
openaire   +2 more sources

About Synergistic Effect of Lubricant and Chemical Additives on Obtaining Quality Surface of Concrete Products

open access: yesНаука и техника, 2019
The paper substantiates scientific background for development of lubricant compositions used in moulds for concrete products with high-quality surface. It has been shown that consideration of interaction between air bubbles, lubricant and liquid phase of
P. I. Yukhnevskiy, N. P. Dimitriadi
doaj   +1 more source

Ionic Liquid Additives in Water-Based Lubricants for Bearing Steel – Effect of Electrical Conductivity and pH on Surface Chemistry, Friction and Wear

open access: yesFrontiers in Mechanical Engineering, 2022
Water-based lubricants have the potential to become the largest environmentally friendly lubricants in applications such as electric vehicles and the newly emerging green technologies of the future due to their inherent low viscosity and cooling ...
W. Wijanarko   +3 more
doaj   +1 more source

Quantitative structure-properties relationship, molecular dynamic simulations and designs of some novel lubricant additives

open access: yesEgyptian Journal of Petroleum, 2019
Quantitative structure-properties relationship (QSPR) method was used to design some novel antioxidant lubricant additives, while molecular dynamics simulations were used to calculate their dynamic binding energies on steel and to hydrogen-containing DLC
Usman Abdulfatai   +3 more
doaj   +1 more source

Nano and micro structures produced from carbon rich fly ash as effective lubricant additives for 150SN base oil

open access: yesJournal of Materials Research and Technology, 2019
Lubricant oils in cars engines are essential components for reducing friction and fuel consumption. The lubrication process can be improved by including effective additives.
Numan Salah   +4 more
doaj   +1 more source

Quantitative Structure-Properties Relationship of Lubricating Oil Additives and Molecular Dynamic Simulations Studies of Diamond-Like-Carbon (DLC) [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2020
Quantitative Structure-Properties Relationship (QSPR) and molecular dynamics simulations studies were carried out on the 53 lubricating oil additives and hydrogen-containing DLC (a-C: H).
Usman Abdulfatai   +3 more
doaj   +1 more source

Molecular design of antioxidant lubricating oil additives via QSPR and analysis dynamic simulation method

open access: yesHeliyon, 2019
Alternatives antioxidant lubricant additives have been proposed by many researchers to replace long-time use of multifunctional lubricant additive, Zinc-dialkyl-dithiophosphate (ZDDP).
Usman Abdulfatai   +3 more
doaj   +1 more source

Experimental Investigation of Tribological Properties of Two Fully Formulated Engine Oils with Additional Nanoscale Spherical Zirconia Particles

open access: yesLubricants, 2022
Decreasing harmful emissions of vehicle engines is becoming more and more challenging due to stricter standards. A possible solution is to improve the tribological attributes of lubricants, which can be achieved through the application of appropriate ...
Rajmund Kuti   +2 more
doaj   +1 more source

Analysis and comparison of tribological performance of fatty acid-based lubricant additives with phosphorus and sulfur

open access: yesJournal of Bioresources and Bioproducts, 2020
Two environmentally friendly, water-based lubricant additives (phosphorus-containing ricinoleic acid (PRA) and sulfur-containing ricinoleic acid (SRA)) were prepared.
Haiyang Ding   +6 more
doaj   +1 more source

Assessing Boundary Film Forming Behavior of Phosphonium Ionic Liquids as Engine Lubricant Additives

open access: yesLubricants, 2016
The reduction of friction and wear losses in boundary lubrication regime of a piston ring-cylinder liner tribo-system has always been a challenge for engine and lubricant manufacturers.
Mayank Anand   +6 more
doaj   +1 more source

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