Research Article
Effect of Size of Multiwalled Carbon Nanotubes Dispersed in Gear Oils for Improvement of Tribological Properties
Table 6
Results of EP test conducted as per ASTM D 2783.
| Test oil | Last non seizure load, kgf | weld load, kgf | load wear index |
| Base lubricant (EP 140 transmission oil) | 120 | 250 | 64.82 | Base lubricant + long MWCNTs | 120 | 315 | 69.54 | Base lubricant +5 hour Ball milled MWCNTs | 140 | 315 | 71.23 | Base lubricant + 10 hour Ball milled MWCNTs | 140 | 400 | 75.65 | Base lubricant +20 hour Ball milled MWCNTs | 120 | 250 | 72.81 |
|
|