Results 21 to 30 of about 7,129 (263)

Film thickness in a ball-on-disc contact lubricated with greases, bleed oils and base oils [PDF]

, 2012
Three different lubricating greases and their bleed and base oils were compared in terms of film thickness in a ball-on-disc test rig through optical interferometry. The theoretical values calculated according to Hamrock's equation are in close agreement
Björling, M., Campos, Armando José Vilaça, Cousseau, Tiago, Graça, Beatriz M., Larsson, R., Seabra, Jorge   +5 more
core   +1 more source

Conductivity and tribological properties of IL-PANI/WS2 composite material in lithium complex grease

Friction, 2022
An ionic liquid-polyaniline/tungsten disulfide (IL-PANI/WS2) composite was synthesized in 1-butyl-3-methylimidazole tetrafluoroborate (LB104) aqueous solution by in-situ polymerization and characterized by Fourier transform infrared spectroscopy.
Yanqiu Xia, Yuanhui Wang, Chenglong Hu, Xin Feng   +3 more
doaj   +1 more source

Effect of Thickener Particle Geometry and Concentration on the Grease EHL Film Thickness at Medium Speeds [PDF]

, 2016
The aim of this paper was to understand the parameters influencing the grease film thickness in a rolling elastohydrodynamically lubricated contact under fully flooded conditions at medium speeds. Film thickness measurements were taken under pure rolling
Bosman, R., Cyriac, F., Lugt, P.M., Padberg, C.J., Venner, C.H.   +4 more
core   +5 more sources

Rheological Evaluations of Solidified Lubricating Greases and Their Base Oils under Very High Pressure

Tribology Online, 2013
Some of high-pressure rheology of solidified lubricating greases and their base oils were estimated up to 3.5 GPa by metal microsphere deformation analysis in a diamond-anvil pressure cell (DAC) under the quasi-static compression condition. From aluminum
Yuichi Nakamura, Takashi Yukawa, Sachiko Kubo, Masahito Matsui   +3 more
doaj   +1 more source

Isocyanate-Functionalized Chitin and Chitosan as Gelling Agents of Castor Oil

Molecules, 2013
The main objective of this work was the incorporation of reactive isocyanate groups into chitin and chitosan in order to effectively use the products as reactive thickening agents in castor oil.
José M. Franco, Rocío Gallego, Jesús F. Arteaga, Concepción Valencia   +3 more
doaj   +1 more source

Biopolymer-based structuring of liquid oil into soft solids and oleogels using water-continuous emulsions as templates [PDF]

, 2015
Physical trapping of a hydrophobic liquid oil in a matrix of water-soluble biopolymers was achieved using a facile two-step process by first formulating a surfactant-free oil-in-water emulsion stabilized by biopolymers (a protein and a polysaccharide ...
Adelmann H., Aiache J. M., Amar-Yuli I., Ans Lesaffer, Ashok R. Patel, Bastiat G., Bastiat G., Benny Lewille, Bot A., Cho Y.-H., Cho Y.-H., Derkach S. R., Doublier J. L., Foudazi R., Fukasawa J.-I., Gallardo V., García-Zapateiro L. A., Goodwin J. W., Grigoriev D. O., Grysko M., Gu Y. S., Gu Y. S., Hanazawa T., Hanazawa T., Hasenhuettl G. L., Hughes N. E., Jost R., Kjøniksen A.-L., Klinkesorn U., Koen Dewettinck, Li Z., Lii C. y., Mandal S. K., Marangoni A., Marangoni A., McClements D. J., Mezzenga R., Mezzenga R., Mitchell J. R., Moschakis T., Nick Cludts, Núñez N., Núñez N., Patel A. R., Patel A. R., Pons R., Pravin S. Rajarethinem, Princen H. M., Rodríguez Patino J. M., Rogers M. A., Romoscanu A. I., Sanchez R., Svobodova H., Sánchez R., Sánchez R., Sánchez R., Vílchez A., Vílchez S., Wilde P., Winnok H. De Vos   +59 more
core   +3 more sources

On the Flow Dynamics of Polymer Greases

Lubricants, 2022
In this paper, the flow dynamics of polymer greases was investigated using micro-particle image velocimetry. Polymer greases have a different thickener structure, compared to widely used lithium-based greases, and they have the well-known ability to ...
Josep Farré-Lladós, Lars G. Westerberg, Jasmina Casals-Terré, Johan Leckner, René Westbroek   +4 more
doaj   +1 more source

Tribology of polypropylene and Li-complex greases with ZDDP and MoDTC additives [PDF]

, 2017
The influence of thickener and additive interactions on grease lubricating performance is examined. Polypropylene and lithium complex thickened (Li-complex) greases were tested both as neat greases and with a 2 wt% addition of ZDDP and/or MoDTC.
Glavatskih, Sergei, Harris, Kathryn, Leckner, Johan, Munavirov, Bulat, Shu, Ju, Westbroek, Rene   +5 more
core   +2 more sources

Ionic Liquids as Grease Base Liquids

Lubricants, 2017
The rheological characteristics of one mineral oil and two ionic liquid (IL) based lubricating greases were explored as a function of thickener concentration.
Robert Mozes, Peter K. Cooper, Rob Atkin, Hua Li   +3 more
doaj   +1 more source

Enhancing tribological performance: A comprehensive review of graphene-based additives in lubricating greases

Results in Engineering
The integration of carbon-based additives, such as graphene, graphene ox- ide (GO), and reduced graphene oxide (rGO), into lubricating greases has attracted significant interest in the field of tribology. These materials exhibit unique properties such as
Ethan Stefan-Henningsen, Nathan Roberts, Amirkianoosh Kiani   +2 more
doaj   +1 more source