In situ and on-demand lubrication by tribo-coating for space applications

Koshi Adachi, K. Kato

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A self-restoring lubrication system with an in situ and on-demand controllable lubrication method is required to improve reliability and to overcome unexpected tribological problems in space. A new type of lubrication method called 'tribo-coating', which forms a thin lubricious film (tribo-coating film) in nanometre-scale by vacuum deposition during sliding, is promising as a required lubrication method for future space systems. This method gives the unique advantage of excellent tribological performance of friction coefficient of <0.02 in sliding contacts and 0.002 in ball bearings. Its possibility as a self-restored lubrication system with in situ and on-demand control of lubrication for ball bearings in vacuum systems is clarified.

Original languageEnglish
Pages (from-to)1031-1039
Number of pages9
JournalProceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
Issue number8
Publication statusPublished - 2008 Dec


  • In situ and on-demand lubrication
  • Self-restoring lubrication
  • Space tribology
  • Tribo-coating


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