A novel functional layered diamond like carbon coating for orthopedics applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F16%3APU126056" target="_blank" >RIV/00216305:26620/16:PU126056 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.diamond.2015.11.011" target="_blank" >http://dx.doi.org/10.1016/j.diamond.2015.11.011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.diamond.2015.11.011" target="_blank" >10.1016/j.diamond.2015.11.011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A novel functional layered diamond like carbon coating for orthopedics applications

Popis výsledku v původním jazyce

Functional Layered "Diamond like Carbon (DLC)" coated interfaces for orthopedic load bearing applications were fabricated and assessed. They consisted of three layers, each designed for specific functions. The fabrication process was performed using magnetron sputtering at low temperatures on steel substrates. Structural investigations showed the layers possessed very fine grained, columnar microstructures with a very low density of inter columnar micro-cracks. The mechanical and surface properties such as micro hardness, wettability, roughness, modulus of elasticity, water contact angle and absorbed protein layer (gamma-globulin) varied among the DLCs. The biotribological tests, conducted under simulated hip joint conditions (friction, wear, Raman intensity ratio and polyethylene wear debris) were correlated with their surface and material properties. The DLC (sample no #ML1), which were built with 0.6 mu m thick tribological layer (a-C:H:Cr-a-C:16 bilayers, ratio: 1:1) and 0.15 mu m thin (a-C:H) top layer was found to yield superior tribological performances at "DLC on Polyethylene" sliding pairs. On the other hand, DLC (sample no#GL3), which consist of 0.6 pm thick tribological layer (gradient layer a-C:H > a-C:N) and 0.15 pm thin (a-C:H) top layer was found to yield finest tribological performances at "DLC on DLC" sliding pairs.

Název v anglickém jazyce

A novel functional layered diamond like carbon coating for orthopedics applications

Popis výsledku anglicky

Functional Layered "Diamond like Carbon (DLC)" coated interfaces for orthopedic load bearing applications were fabricated and assessed. They consisted of three layers, each designed for specific functions. The fabrication process was performed using magnetron sputtering at low temperatures on steel substrates. Structural investigations showed the layers possessed very fine grained, columnar microstructures with a very low density of inter columnar micro-cracks. The mechanical and surface properties such as micro hardness, wettability, roughness, modulus of elasticity, water contact angle and absorbed protein layer (gamma-globulin) varied among the DLCs. The biotribological tests, conducted under simulated hip joint conditions (friction, wear, Raman intensity ratio and polyethylene wear debris) were correlated with their surface and material properties. The DLC (sample no #ML1), which were built with 0.6 mu m thick tribological layer (a-C:H:Cr-a-C:16 bilayers, ratio: 1:1) and 0.15 mu m thin (a-C:H) top layer was found to yield superior tribological performances at "DLC on Polyethylene" sliding pairs. On the other hand, DLC (sample no#GL3), which consist of 0.6 pm thick tribological layer (gradient layer a-C:H > a-C:N) and 0.15 pm thin (a-C:H) top layer was found to yield finest tribological performances at "DLC on DLC" sliding pairs.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20506 - Coating and films

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

Diamond and Related Materials

ISSN

0925-9635

e-ISSN

1879-0062

Svazek periodika

61

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

14

Strana od-do

56-69

Kód UT WoS článku

000369457800008

EID výsledku v databázi Scopus

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