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CHOUDHURY, D. ROY, T. KRUPKA, I. HARTL, M. MOOTANAH, R
Originální název
Tribological Investigation of Ultra-High Weight Molecular Polyethylene Against Advanced Ceramic Surfaces in a hip Joint Conditions
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
The aim of the study was to investigate whether a modified ceramic head surface could reduce the friction and wear rate of simulated ceramic-on-polyethylene hip joints. To address this aim, ultra-high molecular weight polyethylene (UHMWPE) was made to slide on aluminium oxide (Al2O3), dimpled Al2O3, diamond-like carbon (DLC) coated and DLC-coated dimpled substrates. The experiment condition was replicated to simulate artificial hip joints in terms of contact pressure, speed and temperature. UHMWPE on non-dimpled Al2O3 showed lower friction coefficient and wear rate compared to other advanced surfaces. Lower wettability, and higher hardness and surface adhesion of DLC resulted in increased friction and wear. The high difference in modulus of elasticity and hardness between UHMWPE and both, Al2O3 and DLC, reduced the effectiveness of textured surface techniques in friction and wear reduction. Therefore, no tribological benefit was found by fabricating either DLC coating or surface texturing on hard surface when rubbed against softer UHMWPE.
Klíčová slova
Ceramic on polyethylene, diamond-like carbon, micro-dimpled surface, friction coefficient, wear, tribology, textured surface, prosthesis design
Autoři
CHOUDHURY, D.; ROY, T.; KRUPKA, I.; HARTL, M.; MOOTANAH, R
Rok RIV
2015
Vydáno
1. 4. 2015
Nakladatel
SAGE JOURNALS
ISSN
1350-6501
Periodikum
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
Ročník
229
Číslo
4
Stát
Spojené království Velké Británie a Severního Irska
Strany od
410
Strany do
419
Strany počet
10
BibTex
@article{BUT112734, author="CHOUDHURY, D. and ROY, T. and KRUPKA, I. and HARTL, M. and MOOTANAH, R", title="Tribological Investigation of Ultra-High Weight Molecular Polyethylene Against Advanced Ceramic Surfaces in a hip Joint Conditions", journal="PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY", year="2015", volume="229", number="4", pages="410--419", doi="10.1177/1350650114541106", issn="1350-6501" }