1. Ionic liquids (ILs) have been achieving a rapid growth of interest in the last decade. It challenges conventional descriptions of fluids in a variety of ways. Unique properties of these new materials have influenced their potential and current applications.

6. 2.3 Types of Lubricants

7. Boundary Lubrication Mixed Lubrication Hydrodynamic Lubrication F F F Stribeck Curve 2.4 Lubrication Regimes Beraring Parameter ηV/F η = Viscosity V = Speed F = Load

9. 3. TRIBOLOGICAL APPLICATIONS OF IONIC LIQUIDS 3.1 Why can Ionic Liquids be Lubricants?

11. 3.2.1 As Lubrication Oils Ball-on-disc test for Steel-Steel at 100 0 C Friction coefficient at -30, 100 and 200 0 C for Aluminum-Steel contacts [C 1 C 6 im]BF 4 [C 1 C 8 im]BF 4 PGDO Mineral Oi l < ‘ PGDO: Propylene Glycol Diolate’ Disc-on-disc test for Steel-Steel at 100 0 C [C 2 C 6 im] BF4 X-1P PEPF Max Load 600N 300N 300N Load/N Friction Coefficient [C2C6im]BF 4 X-1P PFPE 200 0.060 0.070 0.120 300 0.055 0.065 0.110 400 0.050 - 0.105 500 0.045 - - 600 0.045 - -

12. [C2C6im] BF 4 PFPE Friction Coefficient 0.07 0.14

13. FAP - Tf 2 N -

14. Metal Surface Anion Cation Lubrication Mechanism

16. 4. PROBLEMS OF IL LUBRICANTS AND SOLUTIONS

19. THE END

20. THANK YOU

24. F

25. bis(trifluoromethylsulfonyl)imide tris (pentafluoroethyl) trifluorophosphate Tf 2 N - FAP -