Synthesis, Characterization, and Tribological Behavior of Oleic Acid Capped Graphene Oxide

Table 1

The atomic concentration of elements on the worn surface of PAO and PAO + OACGO lubricated AISI 1045 steel.

Lubricants	Atomic concentration
	C (%)	O (%)	Fe (%)
PAO + OACGO	57.46	16.40	26.14
PAO	40.55	19.57	39.88