MIAYKE Koji's Homepage

AIST
Research Topics

Effect of Residual Gases on Tribo-chemmical Reaction of Metal

Characterictics
  • X-ray photoemission spectroscpy (XPS) equipped with controlled atmosphere friction tester
  • XPS measurement after friction test without air exposure
  • Analyze the tribo-film formation by tribo-chemical reaction.
Equipment
  • X-ray photoemission spectroscpy (XPS) equipped with controlled atmosphere friction tester
  • XPS measurement after friction test without air exposure
XPS
Results
  • Coefficient of friction increased with increasing friction cycles both in vacuum and Ar.
  • In Ar, coefficient of friction rapidly increased from the middle.
Friction results
XPS spectra observed on wear scar
  • In vacuum
    　metal oxides worn
    　nascent metal exposed
    　CoF increased
  • In Ar
    　Residual gas causes oxidation of worn surfaces.
Fe (2p3/2)


 O (1s)

References

  1. "Effects of Residual Gases on Tribo-chemical Reaction of Nickel in Hydrogen Gas Atmosphere"
    K. Miyake, J. Nishihara, M. Nakano, H. Mano, S. Sasaki, and J. Sugimura
    Tribology Online 7(4), 225-233 (2012).


  2. "Effects of Residual Gas on Tribochemical Reactions of SUJ2 Steel in Vacuum and in Argon Gas Atmosphere"
    H. Mano, K. Miyake, M. Nakano, A. Korenaga, T. Murakami, S. Sasaki, and J. Sugimura
    Tribology Online 4(5), 103-108 (2009).