Peer-reviewed articles 17,970 +



Title: TRIBOLOGICAL CHARACTERISTICS OF RAPESEED OIL ADDITIVATED WITH NANO HEXAGONAL BORON NITRIDE AND GRAPHENE

TRIBOLOGICAL CHARACTERISTICS OF RAPESEED OIL ADDITIVATED WITH NANO HEXAGONAL BORON NITRIDE AND GRAPHENE
Dionis Guglea; Lorena Deleanu; Constantin Georgescu; Cristian Munteni?a
10.5593/sgem2022V/6.2
1314-2704
English
22
6.2
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
The rapeseed oil is a promising eco-friendly lubricant for applications involving environment protection. But any vegetal oil has shortcuts especially related to low viscosity and thermal stability. Research in additivation with nanoparticles is of interest for improving load capability of the contact and for reducing wear. Other tribological characteristics, as friction coefficient, could oscillate around values offered by the neat vegetal oil, with more or less influence of the system behavior. The four-ball tester offer a reliable ranking of the tribological characteristics when comparing two or more lubricants. Usually, researchers used test parameters recommended in ISO 20623:2017 Petroleum and related products. Determination of the extreme-pressure and anti-wear properties of lubricants. Four-ball method (European conditions) and ASTM D2596:2020 Standard Test Method for Measurement of Extreme-Pressure Properties of Lubricating Grease (Four-Ball Method), implying 1500 rpm for 1 hour for normal regime. This study proposes to evaluate the tribological characteristics (friction coefficient, wear scar diameter – WSD and temperature during the tests) for five sliding velocities and three loads, taking into account the same sliding distance for each test. The additives were at nano scale and they were supplied by the company PlasmaChem: hexagonal Boron nitride (h-BN) with a particle size of 100-1000 nm, mean value 500 ± 100 nm, and nano graphene as foils, with a thickness of 1.4 nm and particle size up to 2 ?m. The additivated lubricants were obtained by sonication.
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conference
Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 06-08 December, 2022
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Turkish Acad Sci.
37-44
06-08 December, 2022
website
8901
rapeseed oil, hexagonal boron nitride, graphene, nano additivated lubricant, four-ball machine

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