Tribological investigation of ultra-high molecular weight polyethylene against advanced ceramic surfaces in total hip joint replacement

Choudhury, D. and Roy, T. and Krupka, I. and Hartl, M. and Mootanah, R. (2015) Tribological investigation of ultra-high molecular weight polyethylene against advanced ceramic surfaces in total hip joint replacement. Proceedings of the Institution of Mechanical Engineers Part J-Journal of Engineering Tribology, 229 (4). pp. 410-419. ISSN 1350-6501

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Official URL: http://pij.sagepub.com/content/229/4/410

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.

Item Type: Article
Additional Information: Sp. Iss. SI Ce8cu Times Cited:0 Cited References Count:34
Uncontrolled Keywords: Ceramic on polyethylene, diamond-like carbon, micro-dimpled surface, friction coefficient, wear, tribology, textured surface, prosthesis design, diamond-like carbon, bearing surfaces, concave dimples, cobalt-chromium, wear, arthroplasty, performance, uhmwpe, alloy, particles,
Subjects: A General Works
T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 25 Jul 2015 01:56
Last Modified: 25 Jul 2015 01:56
URI: http://eprints.um.edu.my/id/eprint/13793

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