Table 2 Final friction coefficient for three different kinds of friction pairs with the lubrication of C2H6O2 (20%) and mixture of C2H6O2 (20%) and H2SO4 (pH = 1)
From: Reduction of friction stress of ethylene glycol by attached hydrogen ions
Liquid | Si3N4/PTFE | Si3N4/DLC | Si3N4/Steel |
|---|---|---|---|
C2H6O2 | 0.03 | 0.11 | 0.23 |
C2H6O2 with H2SO4 | 0.03 | 0.11 | 0.22 |
