Detail publikačního výsledku

Tribological Investigation of Ultra-High Weight Molecular Polyethylene Against Advanced Ceramic Surfaces in a hip Joint Conditions

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

Anglický název

Tribological Investigation of Ultra-High Weight Molecular Polyethylene Against Advanced Ceramic Surfaces in a hip Joint Conditions

Druh

Článek WoS

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.

Anglický 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

Klíčová slova v angličtině

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

2016

Vydáno

01.04.2015

Nakladatel

SAGE JOURNALS

ISSN

1350-6501

Periodikum

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY

Svazek

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"
}