Tribological investigation of coatings for artificial joints
2008 (English)In: Wear, ISSN 0043-1648, E-ISSN 1873-2577, Vol. 264, no 11-12, 958-966 p.Article in journal (Refereed) Published
A modified pin-on-disc machine was used for the tribological investigation of ultrahigh molecular weight polyethylene (UHMWPE) sliding on stainless steel or stainless steel coated with diamond-like carbon, titanium nitride or Micronite. Micronite is a new type of coating applied by a physical vapour deposition technique combined with a very low friction coating material giving improved tribological properties. The tribological parameters used were chosen to mimic the conditions prevailing in the human body. The wear debris and the counter-surfaces were analysed. The surface analysis showed that the coating changed the roughness of the counter-surfaces. The diamond-like carbon and Micronite coatings had a much higher surface roughness than the titanium nitride coating. The results indicated that the enhanced tribological behaviour of the Micronite/UHMWPE sliding pair might be used as a material combination in artificial joints. Further studies are however required in order to support this.
Place, publisher, year, edition, pages
2008. Vol. 264, no 11-12, 958-966 p.
Artificial joints; Coating; Surface engineering; Tribology; UHMWPE; Wear debris; Coatings; Debris; Friction; Molecular weight; Polyethylenes; Stainless steel; Titanium nitride; Wear resistance;
Medical Laboratory and Measurements Technologies
IdentifiersURN: urn:nbn:se:kth:diva-6281DOI: 10.1016/j.wear.2007.07.003ISI: 000254766900008ScopusID: 2-s2.0-40049105508OAI: oai:DiVA.org:kth-6281DiVA: diva2:10955
QC 20100729. Uppdaterad från Submitted till Published 20100729.2006-10-242006-10-242010-07-29Bibliographically approved