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Tribological Characteristics of Imidazolium-based Room Temperature Ionic Liquids Under High Vacuum

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Abstract

Tribological characteristics of two imidazolium-based room temperature ionic liquids (RTILs), 1-hexyl-3-methylimidazolium tetrafluoroborate, and 1-hexyl-3-methylimidazolium hexafluorophosphate were investigated under high vacuum conditions. Viscosity–temperature characteristics and thermogravimetric characteristics of these compounds were also investigated. Imidazolium-based RTILs have relatively good viscosity–temperature characteristics that are comparable to those of multiply-alkylated cyclopentane (MAC). Thermogravimetric results showed that ionic liquids have high thermal stability and low vapor pressure. Ionic liquids showed low friction and low wear rate under high vacuum conditions, and high load-carrying capacity was observed.

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Author notes

  1. Yoshihiro Shinka

    Present address: Research Laboratory, Ishikawajima-Harima Heavy Industries Co., Ltd, 1, Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa, 235-8501, Japan

Authors and Affiliations

  1. Department of Chemical Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology, 12-1- S1-27, Ookayama 2-chome, Meguro-ku, Tokyo, 152-8552, Japan

    Akihito Suzuki, Yoshihiro Shinka & Masabumi Masuko

Authors
  1. Akihito Suzuki
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  2. Yoshihiro Shinka
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  3. Masabumi Masuko
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Correspondence to Akihito Suzuki.

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Suzuki, A., Shinka, Y. & Masuko, M. Tribological Characteristics of Imidazolium-based Room Temperature Ionic Liquids Under High Vacuum. Tribol Lett 27, 307–313 (2007). https://doi.org/10.1007/s11249-007-9235-8

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  • DOI: https://doi.org/10.1007/s11249-007-9235-8

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