Sliding wear characteristics of the diamond-like carbon films on alloy substrates

Song Jeng Huang, Yeau Ren Jeng, Ken Fu Liu

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


This study used an un-balanced magnetron sputtering system to deposit different thickness of diamond-like carbon (DLC) film on Co-Cr-Mo and Ti-6A1-4V alloy substrate. Wear test, Raman spectroscopy analysis, nano-indentation test and morphology of contact surface were conducted to evaluate the tribological performance of these films for bio-medical applications. The ring-on-disk wear testing shows that the thicker film leads to the lower friction coefficient and higher wear resistance. In the testing process, the fluctuating friction coefficient of DLC coated Co-Cr-Mo substrate was less than that of DLC coated Ti-6Al-4V substrate. Raman spectroscopy analysis and nano-indentation test provide the underlying mechanism for the enhancement of the wear resistance. The DLC coated Co-Cr-Mo substrate provides better wear resistance than the DLC coated Ti-6Al-4V substrate owing to better adhesion of DLC film to the Co-Cr-Mo substrate.

Original languageEnglish
Pages (from-to)1266-1273
Number of pages8
Issue number7-12 SPEC. ISS.
Publication statusPublished - 2007 Sep 10

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry


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