Detail publikace

Tribological behaviour of ultra dispersed diamond-graphite in liquid lubricants

SVOBODA, P. KOŠŤÁL, D. GALAS, R. KŘUPKA, I. HARTL, M.

Originální název

Tribological behaviour of ultra dispersed diamond-graphite in liquid lubricants

Typ

článek v časopise ve Scopus, Jsc

Jazyk

angličtina

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.

Klíčová slova

Ultra Dispersed Diamond-Graphite; Solid Additives; Friction; Wear; Thin Film Lubrication

Autoři

SVOBODA, P.; KOŠŤÁL, D.; GALAS, R.; KŘUPKA, I.; HARTL, M.

Vydáno

31. 12. 2016

Nakladatel

Scibulcom

Místo

Bulharsko

ISSN

1310-4772

Periodikum

Journal of the Balkan Tribological Association

Ročník

22

Číslo

4A

Stát

Bulharská republika

Strany od

4994

Strany do

5009

Strany počet

15

URL

http://www.scibulcom.net

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",
  journal="Journal of the Balkan Tribological Association",
  year="2016",
  volume="22",
  number="4A",
  pages="4994--5009",
  issn="1310-4772",
  url="http://www.scibulcom.net"
}