Tribological Properties of ZrO2 Coating on the Ball Joint of an Axial Piston Pump in High Water-Based Emulsion Medium

<div>Friction coefficient and wear amount of two kinds of materials under different concentrations of high water-based emulsion. (a) Friction coefficient and wear amount of steel-steel pair. (b) Friction coefficient and wear amount of ceramic-ceramic.</div>

Mathematical Problems in Engineering

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Figure 4

Figure 4: Tribological Properties of ZrO2 Coating on the Ball Joint of an Axial Piston Pump in High Water-Based Emulsion Medium 