Results 11 to 20 of about 12,974 (232)
Structural lubricity under ambient conditions [PDF]
Structural lubricity—referring to ultralow levels of friction between atomically flat, incommensurate surfaces—has previously been observed under ultrahigh vacuum.
Ebru Cihan +3 more
doaj +2 more sources
Use of in vitro and haptic assessments in the characterisation of surface lubricity [PDF]
Lubricity is a key property of hydrophilic-coated urinary catheter surfaces. In vitro tests are commonly employed for evaluation of surface properties in the development of novel catheter coating technologies, however, their value in predicting the more ...
Corbett, Dan J. +3 more
core +2 more sources
The paper discusses an instrumented tapping test method using a CNC machine tool to compare the lubricity of MWFs by cutting threads in a Ti-6Al-4V alloy at low speed. The method uses a spiral flute tap size typical of industrial practice.
Paul Wood +13 more
doaj +1 more source
Lubricity of paraffinic fuels additivated with conventional and non-conventional methyl esters
Fuel lubricity prevents wear between metallic parts in relative motion inside the injection system of combustion engines. Among diesel fuels, paraffinic (gas-to-liquid or hydrotreated oils) and biodiesel (methyl esters) fuels are emerging since some of ...
José Rodríguez-Fernández +3 more
doaj +1 more source
The lubricity of ethanol-gasoline fuel blends
In this work the lubricity of several ethanol (hydrated or anhydrous) / gasoline fuel blends was measured by using a conventional HFRR tester. Tests were carried out at 25ºC with no water vapour pressure control, according to the ASTM D6079 standard ...
John Agudelo +2 more
doaj +1 more source
Fuel contamination of engine lubricating oil has been previously determined to arise from two independent phenomena: the effect on oil flash point, and the effect of changing lubrication conditions on tribological pairs. This paper combines these effects
Leszek Chybowski
doaj +1 more source
Experimental viscosity measurements of biodiesels at high pressure [PDF]
The viscosity of biodiesels of soybean and rapeseed biodiesels blended with mineral diesel fuel were measured at pressures of up to 200 MPa. Using a falling sinker-type viscometer reproducible viscosity data were obtained based on the time taken for a ...
Schaschke, Carl
core +4 more sources
Influence of Solutes on Hydration and Lubricity of Dextran Brushes
The characteristic lubricity and non-fouling behavior of polymer brushes is critically dependent on the solvation of the polymer chains, as well as the chain–chain interactions.
Tolga Goren +2 more
doaj +1 more source
Biodiesel as a lubricity additive for ultra low sulfur diesel [PDF]
With the worldwide trend to reduce emission from diesel engines, ultra low sulfur diesel has been introduced with thesulfur concentration of less than 10 ppm.
Subongkoj Topaiboul1 and 2,* +1 more
doaj
The Effect of Temperature and Asphaltene Content on the Lubricating Properties of Fuel Oils
During coal-based power generation, fuel oil is used to assist with ignition of pulverised coal. Fuel oil passes through several pieces of equipment on its way to the burner section of the boiler.
Trinity Thobejane, Philip L. de Vaal
doaj +1 more source

