Detail publikace
Tribologické chování UDDG v mazivech
SVOBODA, P. KOŠŤÁL, D. GALAS, R. KŘUPKA, I. HARTL, M.
Český název
Tribologické chování UDDG v mazivech
Anglický název
Tribological behaviour of ultra dispersed diamond-graphite in liquid lubricants
Typ
článek v časopise ve Scopus, Jsc
Jazyk
en
Originální abstrakt
A metal powder (copper, tin, lead, silver, bronze) as well as some graphite and molybdenum compounds are widely used as solid additives into oils under the high pressures and high loads. It was shown that the advantage of these additives is to reducing wear and friction as well the load between contact elements. Despite all these positives, there are inadequate rheological, anti-corrosion properties and sedimentation stability. Present studies were focused to find a new type of solid particles to create a lubricating composition with low friction. In this case, Ultra Dispersed Diamond-Graphite (UDDG) can represent the possible solution. These nanoparticles have very good physical and chemical properties, high hardness, resistance and compatibility with various types of oils and lubricants as well as environmental friendly. This paper presents experimental investigations of the influence of UDDG on friction and wear for a highly loaded lubricated contacts using tribological ball-on-disc test rig and mini traction machine. However, experimental results show, that the UDDG have the negatively influence to the friction. It seems that chemical treatment of UDDG powder dispersed in lubricant play a great role for the case of wear and friction for heavy loaded contacts.
Český abstrakt
Tento článek prezentuje experimentální výzkum vlivu UDDG na tření a opotřebení vysoce namáhaných mazaných kontaktů pomocí ball-on-disc zkušebního zařízení a mini trakčního přístroje. Experimentální výsledky ukazují, že UDDG negativně ovlivňuje tření. Zdá se, že chemické ošetření sušeného UDDG rozptýleného v mazivu hráje velkou roli pro případ opotřebení a tření pro vysoce namáhané kontakty.
Anglický abstrakt
A metal powder (copper, tin, lead, silver, bronze) as well as some graphite and molybdenum compounds are widely used as solid additives into oils under the high pressures and high loads. It was shown that the advantage of these additives is to reducing wear and friction as well the load between contact elements. Despite all these positives, there are inadequate rheological, anti-corrosion properties and sedimentation stability. Present studies were focused to find a new type of solid particles to create a lubricating composition with low friction. In this case, Ultra Dispersed Diamond-Graphite (UDDG) can represent the possible solution. These nanoparticles have very good physical and chemical properties, high hardness, resistance and compatibility with various types of oils and lubricants as well as environmental friendly. This paper presents experimental investigations of the influence of UDDG on friction and wear for a highly loaded lubricated contacts using tribological ball-on-disc test rig and mini traction machine. However, experimental results show, that the UDDG have the negatively influence to the friction. It seems that chemical treatment of UDDG powder dispersed in lubricant play a great role for the case of wear and friction for heavy loaded contacts.
Klíčová slova česky
UDDG; pevné přísady; tření; opotřebení; tenký mazací film
Klíčová slova anglicky
Ultra Dispersed Diamond-Graphite; Solid Additives; Friction; Wear; Thin Film Lubrication
Vydáno
31.12.2016
Nakladatel
Scibulcom
Místo
Bulharsko
ISSN
1310-4772
Ročník
22
Číslo
4A
Strany od–do
4994–5009
Počet stran
15
BIBTEX
@article{BUT131341,
author="Petr {Svoboda} and David {Košťál} and Radovan {Galas} and Ivan {Křupka} and Martin {Hartl},
title="Tribological behaviour of ultra dispersed diamond-graphite in liquid lubricants",
year="2016",
volume="22",
number="4A",
month="December",
pages="4994--5009",
publisher="Scibulcom",
address="Bulharsko",
issn="1310-4772"
}