Usage of powder pinus brutia cone and colemanite combination in brake friction composites as friction modifier

Abstract Friction composites are materials used in places such as braking systems of highways and rail transportation vehicles. Composites that are resistant to abrasion and environmental conditions such as temperature and humidity and with high resistance to friction are preferred in brake systems. Therefore, friction composites are formed by the combination of many materials with different properties. In this study, five friction composite samples were prepared with various combination of powder Pinus Brutia cone and colemanite. The amount of other ingredients of samples are constant. Samples were produced by conventional dry mixing method. Friction and wear tests were determined by a full-scale brake friction tester. The specific wear rate, friction coefficient and friction stability parameters of the samples were investigated and friction performance was evaluated. The hardness of the samples was calculated by Brinell hardness tester and the density was determined according to Archimedes' principle. According to the test results, all samples are compatible with the literature, applicable in industry and comply with the standards.