Detail publikace

The influence of surface modification on friction and lubrication mechanism under a bovine serum lubricated condition

CHOUDHURY, D. GHOSH, S. ALI, F. VRBKA, M. HARTL, M. KŘUPKA, I.

Originální název

The influence of surface modification on friction and lubrication mechanism under a bovine serum lubricated condition

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Diamond like carbon (DLC) and micro dimple are two potential surface modification techniques that are extensively studied to be utilized into biotribological interfaces in order to reduce friction coefficient and wear rate. However, in situ observation of bovine serum lubricated DLC and micro dimpled surface contact are not well understood yet. In this study, a DLC coated and a micro dimpled steel ball rubbed against the Cr coated glass disk, where 25% bovine serum was used as a lubricant, and the temperature was maintained at 37° C. The behaviors of interface were captured using an optical interferometry and the friction coefficients were measured using a torque sensor simultaneously. The experimental results reveal that DLC/glass sliding is scuffling-free, having lowered friction coefficient, however the lubrication film formation is insignificant. On the other hand, the dimples retained lubrication and as a result, the wear of the glass disk were minimized, however friction coefficient were not reduced. Therefore, the DLC and micro dimpled individually have few improved tribological features, but their combination should be considered for maximizing the performances.

Klíčová slova

Diamond like carbon; micro dimple; bovine serum; friction coefficient; film formation

Autoři

CHOUDHURY, D.; GHOSH, S.; ALI, F.; VRBKA, M.; HARTL, M.; KŘUPKA, I.

Vydáno

8. 4. 2016

Nakladatel

Taylor & Francis

Místo

United Kingdom

ISSN

1040-2004

Periodikum

TRIBOLOGY TRANSACTIONS

Ročník

59

Číslo

2

Stát

Spojené státy americké

Strany od

316

Strany do

322

Strany počet

7

URL

http://www.tandfonline.com/doi/abs/10.1080/10402004.2015.1077409#.VfAuKun_Whc

BibTex

@article{BUT116116,
  author="CHOUDHURY, D. and GHOSH, S. and ALI, F. and VRBKA, M. and HARTL, M. and KŘUPKA, I.",
  title="The influence of surface modification on friction and lubrication mechanism under a bovine serum lubricated condition",
  journal="TRIBOLOGY TRANSACTIONS",
  year="2016",
  volume="59",
  number="2",
  pages="316--322",
  doi="10.1080/10402004.2015.1077409",
  issn="1040-2004",
  url="http://www.tandfonline.com/doi/abs/10.1080/10402004.2015.1077409#.VfAuKun_Whc"
}