Abstract
Brake pads in automobiles are made of composite materials composed of more than ten different ingredients. The choice of the friction material has an important impact on a vehicle’s braking performance. Drivers expect the brake system to stop the automobile under all possible conditions. In the present study, natural zeolite was used as a new material in brake pad. Zeolite has a silica ingredient which gives the pad materials a ceramic like behavior. Zeolite is ground to obtain the dust. Different amount of zeolite is used in the mix of other regular ingredients in brake pad. Newly formulated brake pad material with seven different ingredients has been tested under Friction Assessment and Screening Test (FAST). In this experimental study, the change of friction coefficient, the temperature of friction surface and the amount of wear were measured. In addition, micro-structural characterizations of braking pads were carried out using scanning electron microscopy (SEM).
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