Detailed study of structural, mechanical and tribological characteristics of ~100 nm sized carbon particles embedded amorphous carbon coatings

Abdul Wasy Zia*, Zhifeng Zhou, Lawrence Kwok-Yan Li

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

This article presents the study of ~100 nm sized isolated carbon particles embedded amorphous carbon (a-C) coatings. The isolated carbon particles are in-situ created simultaneous to a-C coatings deposition by plasma quenching and embedded at controlled depth in various amounts. To understand the relationship between particles quantity and a-C coating properties, a series of a-C coatings are prepared in which ~100 nm sized carbon nanoparticles are embedded from 1 to 6-layers of particles in amorphous carbon matrix of 335 nm confined thickness. A 21% increase in hardness with a 55% decrease in wear rate has observed. Furthermore, the baseline a-C coating fails during run-in phase while the 1-layer sample lasts up to 7000 cycles at high contact stress of 2.8 GPa (60 N).

Original languageEnglish
Pages (from-to)313-321
Number of pages9
JournalSurface and Coatings Technology
Volume357
DOIs
Publication statusPublished - 15 Jan 2019

Keywords

  • Carbon coatings
  • Embedded
  • Mechanical properties
  • Nanoparticles
  • Plasma quenching
  • Sputtering
  • Tribology

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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