Tribological investigation of coatings for artificial joints
| Autor: | Anneli Jedenmalm, Antal Boldizar, Mohammed Hoseini |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Materials science
Diamond-like carbon Surfaces and Interfaces Surface finish Polyethylene Surface engineering engineering.material Tribology Condensed Matter Physics Titanium nitride Surfaces Coatings and Films chemistry.chemical_compound chemistry Coating Mechanics of Materials Materials Chemistry Surface roughness engineering Composite material |
| Zdroj: | Wear. 264:958-966 |
| ISSN: | 0043-1648 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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