order of coefficient of frictions
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The Coefficient of Friction
Coefficient of friction can be defined as the ratio of the force of friction between two bodies and the force pressing them together [26]. Kumar et al. [27] studied the influence of particle size, reinforcement content, load and speed on the coefficient of friction at constant load and speed. They observed that the coefficient of friction decreased with an increase in FA content at a constant load and speed. The coefficient of friction of composite materials was greater than that of the aluminum alloy. The coefficient of friction also increased with an increase in FA particle size. The rise in the abrasive resistance by coarse particles most
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