Fig. 4From: Study of tribological behavior of Cu–MoS2 and Ag–MoS2 nanocomposite lubricantsFriction coefficient of Grease 1—Litol + 5 % n-MoS2, 2—Litol, 3—Litol + 5 % (MoS2 + 7 % Ag) 4—Litol + 5 % (MoS2 + 7 % Cu)Back to article page