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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
The influence of surface modification on friction and lubrication mechanism under a bovine serum lubricated condition
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20301 - Mechanical engineering

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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