OBRABOTKAMETALLOV technology Vol. 27 No. 2 2025 Fig. 7. Coefficient of Friction for the BFC1 and BFC2 Fig. 8. Weight Loss of Samples for the BFC1 and BFC2 Ta b l e 3 Test Results for Average Weight Loss of the BFC1 and BFC2 Composition Load (N) Н Mean Weight loss (g) Average Weight Loss (g) BFC1 10 0.042 0.084 50 0.091 100 0.118 BFC2 10 0.006 0.011 50 0.010 100 0.018 Fig. 7 displays the coefficient of friction for the BFC1 and BFC2, while Fig. 8 displays the weight loss (g) for the BFC1 and BFC2. The overall average coefficient of friction µ for all applied loads was 0.42 for composite BFC1 and 0.48 for composite BFC2, which corresponds to acceptable values according to engineering standards [19, 20]. For each composite, increasing the applied load resulted in an increase in the coefficient of friction µ. For comparative evaluation of the proposed brake friction composites, the values of the coefficient of friction and mass loss are presented in Table 4. The higher coefficient of friction of material BFC2, revealed by the comparison, indicates its greater effectiveness in braking systems. The greater mass loss during the testing of material BFC1 in wear tests indicates its lower wear resistance compared to BFC2. A higher coefficient of friction contributes to Ta b l e 4 Comparison of Properties for the Brake Friction Composites Properties Composition BFC1 Composition BFC2 Friction coefficient µ 0.42 0.48 Weight loss (g) 0.084 0.011
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