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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F16%3APU115253" target="_blank" >RIV/00216305:26210/16:PU115253 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.tandfonline.com/doi/abs/10.1080/10402004.2015.1077409#.VfAuKun_Whc" target="_blank" >http://www.tandfonline.com/doi/abs/10.1080/10402004.2015.1077409#.VfAuKun_Whc</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/10402004.2015.1077409" target="_blank" >10.1080/10402004.2015.1077409</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

TRIBOLOGY TRANSACTIONS

ISSN

1040-2004

e-ISSN

1547-397X

Svazek periodika

59

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

316-322

Kód UT WoS článku

000374173400014

EID výsledku v databázi Scopus

2-s2.0-84962885306