Diamond-like carbon coatings by arc-discharge methods

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

  • University of Helsinki
  • Los Alamos National Laboratory

Abstract

Pulsed arc-discharge deposition has been used to prepare diamond-like carbon (DLC) films on various substrates. Both direct and curved plasma methods have been used. Coatings with excellent tribological properties and good adhesion have been demonstrated. The coefficient of friction of diamond-like films against a Si3N4 ball was between 0.045 and 0.084 which is an order of magnitude smaller than for most other materials. The corresponding wear coefficient was between 0.5 × 10-16 and 1.7 × 10-16m3N m-1. The diamond-like films produced using mass-separated ion beams seem to be similar in structure and properties except that the arc-discharge deposited films suffer from graphite particles on the depositions, even when using a curved solenoid.

Details

Original languageEnglish
Pages (from-to)180-187
Number of pages8
JournalSurface and Coatings Technology
Volume47
Issue number1-3
Publication statusPublished - Aug 1991
MoE publication typeA1 Journal article-refereed

ID: 4317032