Abstract
After the adverse effects of asbestos used in brake shoes on vehicles were come up, the researches on ecological shoe material have been carried out by many researchers. From this point forth, four different twaron-reinforced composite materials, which could be brake shoes, were produced in this study. Samples were produced in double acting press at a pressure of 100 MPa at 160°C by mixing the components used in powder form in a mixer. The samples were cured at 160°C for 6 hours. After curing, produced samples and those taken from commercial shoes were compared by performing hardness pin-on-disc wear tests (ASTM G99-95). When the results are evaluated in terms of hardness, it was observed that 20% twaron-reinforced sample has the highest hardness (116,88 Rockwell-R), but when evaluated in terms of friction, it was seen that while 5% twaron-reinforced sample satisfies highest friction coefficient, 10% twaron-reinforced sample exhibits close values to the commercial brake shoe at varying loads and showed a stable friction performance.
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