Tribological Behavior of Si₃N₄/Ti₃SiC₂ Contacts Lubricated by Lithium-Based Ionic Liquids

Table 1

Physical properties of different lubricants.

Lubricants	Properties
	Kinematic viscosity (mm^2/s)		Viscosity index	TGA (Onset decomposition; temperature °C)
	40°C	100°C
Glycerol	246.4	13.7	4.9	155.8
Li(OZO)TFSI	999.3	39.5	65.9	237.3
Li(urea)TFSI	399.0	22.5	62.4	210.3
Li(G3)TFSI	74.6	11.2	140.7	194.1
Li(G4)TFSI	41.5	7.3	139.4	194.5