Effect of glass powder on the friction performance of automotive brake lining materials

Abstract

In this study, bronze-based brake linings containing 0-8 wt% glass powder were manufactured by a hot pressing process and tribological properties of produced samples were investigated using a Chase-type friction tester. The hardness and density of the samples were also determined. The microstructures and friction surfaces of the samples were examined using scanning electron microscopy (SEM). As a result, it was dermined that the sample that was reinforced with 8 wt% glass powder has exhibited the best wear behavior. Furthermore, a reduction in the friction coefficient of all the samples with increasing friction surface temperature was observed. The results have showed that friction coefficient stability of the brake lining samples could be improved with the increasing content of glass powder.

Keywords

• brake lining materials
• glass powder
• friction coefficient
• hot pressing