Detail publikace

The Effect of Kinematic Conditions and Synovial Fluid Composition on the Frictional Behaviour of Materials for Artificial Joints

NEČAS, D. VRBKA, M. KŘUPKA, I. HARTL, M.

Originální název

The Effect of Kinematic Conditions and Synovial Fluid Composition on the Frictional Behaviour of Materials for Artificial Joints

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The paper introduces an experimental investigation of frictional behaviour of materials used for joint replacements. The measurements were performed using a ball-on-disc tribometer, while four material combinations were tested; metal-on-metal, ceramic-on-ceramic, metal-on-polyethylene, and ceramic-on-polyethylene, respectively. The contact was lubricated by pure saline and various protein solutions. The experiments were realized at two mean speeds equal to 5.7 mm/s and 22 mm/s and two slide-to-roll ratios, -150% and 150%. It was found that the implant material is the fundamental parameter affecting friction. In general, the metal pair exhibited approximately two times higher friction compared to the ceramic. In particular, the friction in the case of the metal varied between 0.3 and 0.6 while the ceramic pair exhibited friction within the range from 0.15 to 0.3 at the end of the test. The lowest friction was observed for polyethylene while it decreased to 0.05 under some conditions. It can be also concluded that adding proteins to the lubricant has a positive impact on friction in the case of hard-on-hard pairs. For hard-on-soft pairs, no substantial influence of proteins was observed. The effect of kinematic conditions was found to be negligible in most cases.

Klíčová slova

Joint replacement; friction; material; proteins; kinematic conditions

Autoři

NEČAS, D.; VRBKA, M.; KŘUPKA, I.; HARTL, M.

Vydáno

10. 5. 2018

Nakladatel

MDPI

Místo

Basilej, Švýcarsko

ISSN

1996-1944

Periodikum

Materials

Ročník

11

Číslo

5

Stát

Švýcarská konfederace

Strany od

1

Strany do

12

Strany počet

12

URL

http://www.mdpi.com/1996-1944/11/5/767

Plný text v Digitální knihovně

http://hdl.handle.net/11012/72418

BibTex

@article{BUT147354,
  author="David {Nečas} and Martin {Vrbka} and Ivan {Křupka} and Martin {Hartl}",
  title="The Effect of Kinematic Conditions and Synovial Fluid Composition on the Frictional Behaviour of Materials for Artificial Joints",
  journal="Materials",
  year="2018",
  volume="11",
  number="5",
  pages="1--12",
  doi="10.3390/ma11050767",
  issn="1996-1944",
  url="http://www.mdpi.com/1996-1944/11/5/767"
}