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2007-05-24 - Article/Dans un journal avec peer-review - Anglais - 7 page(s)

Snyders Rony , Bousser E., Amireault P., Klemberg-Sapieha J.E., Park E., Taylor K., Martinu L., "Tribo-mechanical properties of DLC coatings deposited on nitrided biomedical stainless steel" in Plasma Processes and Polymers, 4, S1, S640-S646

  • Edition : Wiley, Weinheim (Germany)
  • Codes CREF : Chimie des solides (DI1316), Physique des plasmas (DI1233)
  • Unités de recherche UMONS : Chimie des interactions plasma-surface (S882)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
Texte intégral :

Abstract(s) :

(Anglais) Diamond-like carbon (DLC) coatings are frequently considered for biomedical applications due to their attractive tribo-mechanical properties combined with good biocompatibility. In the present work, DLC coatings have been deposited on 316L stainless steel (SS) substrates. The duplex approach consisted of surface nitriding in a radio frequency (RF) discharge for the reinforcement of SS-DLC bonding prior to DLC deposition (0.5 mmthick). Chemical composition and morphology of the nitrided SS were assessed by XPS and SEM, while depth-sensing indentation, ball-on-flat tribometry, and microscratch testing were used to determine the tribo-mechanical performance of the nitrided SS and of DLC coated SS samples. We found that the formation of a thick ( 1–2 mm), hard (15 GPa) metal nitride layer at the SS surface has a strong influence on enhancing the coating adhesion (critical load of 6.5 N) and wear resistance of DLC (wear factor 3–8 10 8mm3 N 1 m 1 compared to 10 5mm3 N 1 m 1 for nitrided SS).

Notes :
  • (Anglais) Lecture en ligne: http://onlinelibrary.wiley.com/doi/10.1002/ppap.200731601/pdf
Identifiants :
  • DOI : 10.1002/ppap.200731601