Results 41 to 50 of about 43,546 (130)

High Pressure Rheology of Lubricants (Part 4)

open access: yesTribology Online
The physical properties of lubricant under high temperature and high pressure include high pressure viscosity, high pressure density, bulk modulus, coefficient of thermal expansion, etc.
Masato Kaneko
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

Lubrication Performance Promotion of GTL Base Oil by BN Nanosheets via Cascade Centrifugation-Assisted Liquid-Phase Exfoliation

open access: yesLubricants
Broad lateral size and thickness distributions impede the application of hexagonal boron nitride nanosheets (BNNSs) as friction modifiers in base oil, although they possess remarkable potential for lubrication performance promotion.
Jiashun Liu   +14 more
doaj   +1 more source

Tribological and Thermal Transport of Ag-Vegetable Nanofluids Prepared by Laser Ablation

open access: yesApplied Sciences, 2020
Lubricants and fluids are critical for metal-mechanic manufacturing operations as they reduce the friction and wear of tooling and components, and serve as coolants to dissipate the heat generated in these operations.
Jaime Taha-Tijerina   +4 more
doaj   +1 more source

Propriétés et utilisation de l’huile de ricin

open access: yesOléagineux, Corps gras, Lipides, 2012
Castor and its derived oil, the so-called ‘‘castor oil’’, are known from the ancient times, when the oil was used for cosmectics, or as a laxative, or as a fuel in lamps.
Dumeignil Franck
doaj   +1 more source

Lubricant-surface system characterisation for high performance transmissions [abstract]

open access: yes, 2018
Lubricant-surface system characterisation for high performance transmissions ...
Nick Morris (1256529)   +3 more
core   +2 more sources

Rheological Study of Solidified Traction Oils under High Pressure by Observation of Deformed Microspheres

open access: yesTribology Online, 2008
The rheological properties of solidified traction oils used in continuously variable transmissions (CVTs) under pressure were evaluated by observing large plastic deformation of metal microspheres (φ about 0.07 mm), occurring due to non-hydrostatic ...
Yuichi Nakamura   +2 more
doaj   +1 more source

Effects of Lubricating Conditions on Wear Performance of U77MnCrH Rail

open access: yesMetals
With the rapid development of railway towards being high speed and having heavy load capacity, the wheel–rail wear and rolling contact fatigue in the curve section with a small radius of freight have become the key problems in urban railways, which need ...
Xu Liang   +4 more
doaj   +1 more source

Tribological investigation of the effects of engine oil additives for vintage gasoline engines [PDF]

open access: yesFME Transactions
Restoration of vintage vehicles is becoming more and more popular nowadays. Conditions of usage and operation changed throughout recent years, factory recommended lubricants and fuels are no longer available.
Kuti R., Papp Cs, Tóth M., Tóth Á.D.
doaj   +1 more source

The problems of biopollution with jet fuels and the way of achieving solution

open access: yesTransport, 2008
The article considers and presents the classification methods of identifying and assessing petroleum biological contamination and techniques in maintaining biological stability of hydrocarbon fuel.
Sergey Boychenko   +2 more
doaj  

Home - About - Disclaimer - Privacy