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Tribological properties of spherical and mesoporous NiAl particles as ionic liquid additives

  • Yao Yao
  • Yi Xu
  • Xiaoqiang FanEmail author
  • Minhao Zhu
  • Guangfei Liu
Open Access
Research Article


In this study, spherical and mesoporous NiAl particles (abbreviated as sNiAl and mNiAl) were introduced as lubricant additives into two alkyl-imidazolium ionic liquids (ILs) (1-butyl-3-methylimidazolium tetrafluoroborate (LB104) and 1-butyl-3-methyl imidazolium hexafluorophosphate (LP104)) to explore their tribological properties. The sNiAl and mNiAl particles were modified in-situ by anion and cation moieties of ILs through chemical interaction, thereby enhancing their dispersibility and stability in ILs. The mNiAl particles have better dispersibility than the sNiAl ones in ILs because of high specific surface area. LP104-modified sNiAl particles show better friction reduction and wear resistance, mainly relying on the synergy of the hybrid lubricant. These particles form a protective layer that prevents friction pairs from straight asperity contact and improves the tribological behaviors.


ionic liquids alloy particles spherical and mesoporous structure tribological properties 



The authors gratefully acknowledge the financial support provided by the National Natural Science Foundation of China (No. 51705435 and No. 51627806), key project of Sichuan Department of Science and Technology (No. 2018JZ0048) and Fundamental Research Funds for the Central Universities (2018GF05).


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Authors and Affiliations

  • Yao Yao
    • 1
  • Yi Xu
    • 1
  • Xiaoqiang Fan
    • 1
    Email author
  • Minhao Zhu
    • 1
    • 2
  • Guangfei Liu
    • 3
  1. 1.Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduChina
  2. 2.Tribology Research Institute, State Key Laboratory of Traction PowerSouthwest Jiaotong UniversityChengduChina
  3. 3.School of EngineeringLiaocheng Vocational & Technical CollegeLiaochengChina

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