Abstract
Automotive brake pads consist of components that form materials such as binders, friction modifiers, reinforcing materials, lubricants and fillers. Factors such as particle size, morphologies, chemical and structural properties of the materials that make up the brake lining composites affect the stability and performance of the lining. In this study, effect of nano-sized graphite used as solid lubricant among brake lining materials on tribological properties was investigated. Three different specimens containing 3, 6 and 9 wt.% nano-sized graphite produced by powder metallurgy method. The specific wear rates and friction coefficients of specimens were obtained by using pin-on-disc type tribometer. The results showed that usage of nanomaterials in brake lining composites improved braking performance significantly. Additionally, it was observed that amount of graphite affected wear and friction properties of brake linings.
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