Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Influence of molecular structure on the lubrication properties of four different esters
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Material- och solidmekanik.ORCID-id: 0000-0002-4686-4010
2000 (engelsk)Inngår i: Tribologia, ISSN 0780-2285, Vol. 19, nr 4, s. 3-8Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The lack of published data on the chemical structures of lubricants makes it almost impossible to investigate the influence of structure on lubrication properties. In this investigation, the lubricating properties of three esters with known chemical structure have been investigated and compared with a commercial ester. The lubrication properties that were expected to be dependent on chemical structure such as film thickness and traction, viscosity and friction coefficients were compared by experiment. To measure the film thickness a Ball and Disc Apparatus was used, the traction coefficient was measured in a Jumping Ball Apparatus, the viscosity in a rotational cylindrical viscometer and the friction coefficient in a reciprocating friction and wear test apparatus. The results showed that molecular length has a significant influence on lubrication properties, with longer molecules giving the highest viscosity and greatest film thickness. The length of the molecule did not influence the coefficients of friction, but the traction coefficient, Υ, decreased with increasing molecular length.

sted, utgiver, år, opplag, sider
2000. Vol. 19, nr 4, s. 3-8
HSV kategori
Forskningsprogram
Maskinelement; Hållfasthetslära
Identifikatorer
URN: urn:nbn:se:ltu:diva-12799Lokal ID: bf45d190-d577-11db-8550-000ea68e967bOAI: oai:DiVA.org:ltu-12799DiVA, id: diva2:985750
Merknad
Godkänd; 2000; 20061109 (cira)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-01-10bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Personposter BETA

Tuomas, RogerAlmqvist, TorbjörnÅhrström, Bert-OlofBerg, Sven

Søk i DiVA

Av forfatter/redaktør
Tuomas, RogerAlmqvist, TorbjörnÅhrström, Bert-OlofBerg, Sven
Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric

urn-nbn
Totalt: 43 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf