Self-lubrication of chlorine-implanted titanium nitride coating

Tatsuhiko Aizawa, Thananan Akhadejdamrong, Chihiro Iwamoto, Yuichi Ikuhara, Atsushi Mitsuo

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22 Citations (Scopus)


Chlorine implantation into TiN coatings decreases the wear loss and the friction coefficient. Even by low-dose chlorine implantation, the wear volume is decreased by three orders of magnitude or more, and the friction coefficient becomes <0.1. This self-lubrication mechanism is related to the presence and mobility of implanted chlorine atoms inside the columnar TiN microstructure. According to observations of chlorine-implanted TiN coatings using high-resolution transmission electron microscopy, the chlorine atoms are present in the damaged region, where TiN is composed of nanosized grains. From these data, a self-lubrication mechanism is proposed with chlorine catalyzing the oxidation of titanium and leading to the formation of some tribological reaction product.

Original languageEnglish
Pages (from-to)21-24
Number of pages4
JournalJournal of the American Ceramic Society
Issue number1
Publication statusPublished - 2002 Jan


ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Aizawa, T., Akhadejdamrong, T., Iwamoto, C., Ikuhara, Y., & Mitsuo, A. (2002). Self-lubrication of chlorine-implanted titanium nitride coating. Journal of the American Ceramic Society, 85(1), 21-24.