Figure 2
From: Ultrathin MoS2 Nanosheets with Superior Extreme Pressure Property as Boundary Lubricants

The results of the load-climbing tribological tests.
The tested samples include four lubricants, which contain the as-synthesized ultrathin MoS2 nanosheets, MoDDP, IF MoS2 and micro MoS2 respectively and oleylamine. The weight fraction of element of Mo in each lubricant was controlled at 6 wt‰. (a) COF and load as functions of time of the tests. The COF of repeated tests fluctuates within 0.01. (b) Highest load with no seizure of these lubricants and oleylamine (OAm).