Amphiphilic Zirconium Phosphate Nanoparticles as Tribo-Catalytic Additives of Multi-Performance Lubricants Academic Article uri icon


  • Abstract The advancement of electric vehicles demands lubricants with multifunction and performance. In this research, we investigated amphiphilic ZrP nanoparticles as lubricant additives. Experiments showed that the nanolubricant produced a tribofilm reduced the friction for 40% and wear 90%, while the electrical conductivity remained to be stable during tribotesting. Surface characterization of the tribofilm showed that there was a layered pyrophosphate on the wear track. The in situ impedance study about tribochemical kinetics revealed that the process in formation of a tribofilm involved simultaneous growth and wear. During growth, the coefficient of friction increased with continued formation of such film. During wear, the material removal rate was a function of friction, i.e., the higher the wear-rate, the higher the friction coefficient. The competing mechanisms of film growth and wear resulted in an electrically uniformed surface.

published proceedings


author list (cited authors)

  • Chen, Y., Wang, X., Han, Z., Sinyukov, A., Clearfield, A., & Liang, H.

citation count

  • 2

complete list of authors

  • Chen, Yan||Wang, Xuezhen||Han, Zehua||Sinyukov, Alexander||Clearfield, Abraham||Liang, Hong

publication date

  • July 2022