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CHOUDHURY, D. ROY, T. KRUPKA, I. HARTL, M. MOOTANAH, R
Original Title
Tribological Investigation of Ultra-High Weight Molecular Polyethylene Against Advanced Ceramic Surfaces in a hip Joint Conditions
Type
journal article in Web of Science
Language
English
Original Abstract
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.
Keywords
Ceramic on polyethylene, diamond-like carbon, micro-dimpled surface, friction coefficient, wear, tribology, textured surface, prosthesis design
Authors
CHOUDHURY, D.; ROY, T.; KRUPKA, I.; HARTL, M.; MOOTANAH, R
RIV year
2015
Released
1. 4. 2015
Publisher
SAGE JOURNALS
ISBN
1350-6501
Periodical
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
Year of study
229
Number
4
State
United Kingdom of Great Britain and Northern Ireland
Pages from
410
Pages to
419
Pages count
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" }