Effect of micro gas flow on low friction properties of diamond coating with partly polished surface

Shigeru Yonemura, Masashi Yamaguchi, Takanori Takeno, Hiroyuki Miki, Toshiyuki Takagi

Research output: Contribution to journalConference article

5 Citations (Scopus)

Abstract

Nakamori et al. found experimentally that the friction between a partly polished diamond coating and a metal surface was drastically reduced to zero as relative speed was increased. It seems that diamond coating took off the counter surface because sliding became noiseless. This phenomenon shows the possibility of innovative air lubrication system. In the present work, we make the floating mechanism clear by using the direct simulation Monte Carlo (DSMC) method. It is found that the phenomenon is peculiar to the high Knudsen number flows.

Original languageEnglish
Pages (from-to)1153-1157
Number of pages5
JournalAIP Conference Proceedings
Volume1084
Publication statusPublished - 2009
Event26th International Symposium on Rarefied Gas Dynamics, RGD26 - Kyoto, Japan
Duration: 2008 Jul 202008 Jul 25

Keywords

  • DSMC method
  • Diamond coating
  • Molecular gas film lubrication
  • Rarefied gas dynamics

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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