Optimization of the surface texture for silicon carbide sliding in water

Xiaolei Wang, Koshi Adachi, Katsunori Otsuka, Koji Kato

Research output: Contribution to journalArticlepeer-review

241 Citations (Scopus)


Surface texturing has been recognized as an effective means to improve the tribological performances of sliding surfaces. Usually, generation additional hydrodynamic pressure to increase the load carrying capacity is regarded as the most significant effect of surface texture. In the case of silicon carbide sliding against identical material in water, the experimental results indicate that surface texture is also helpful to improve the running-in progress to smooth the contact surfaces, showing another reason to result in low friction. Based on the consideration of enhancing the generation of hydrodynamic pressure and improving running-in progress, a surface texture pattern, which was combined with large (circle, 350 μm in diameter) and small (rectangular, 40 μm in length) dimples, was designed to maximize the texture effect on the load carrying capacity of SiC surfaces sliding in water. The friction coefficient of such textured surface was evaluated and compared with that of untextured and those only with large or small dimples only. The friction reduction mechanisms of the patterns with different dimples in size are discussed.

Original languageEnglish
Pages (from-to)1282-1286
Number of pages5
JournalApplied Surface Science
Issue number3
Publication statusPublished - 2006 Nov 30


  • Running-in
  • SiC
  • Surface texturing
  • Water lubrication


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