Very low friction for diamond sliding on diamond in water

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19 Citations (Scopus)


This letter reports the lowest coefficient of friction measured for diamond sliding on diamond. When a natural diamond stylus with a spherical tip about 50 μm in diameter slides on a polished polycrystalline chemically vapor deposited diamond film in water at a speed of 0.05 mm/s under a load of 50 g, the coefficient of friction falls to ∼0.001. This clearly shows the effectiveness of water for lubricating diamond sliding on diamond.

Original languageEnglish
Pages (from-to)3586-3588
Number of pages3
JournalApplied Physics Letters
Issue number26
Publication statusPublished - 1993

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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