Influence of Titanate Composition and Particle Size on Friction Stability and Wear in Brake Pads

Stable friction and low wear are essential for reliable brake performance. This study investigates the effects of platelet titanate particle size and chemical composition on the tribological behavior of brake pads. We examined platelet titanates with varying particle sizes and compositions—potassium titanate and potassium magnesium titanate—to understand their impact on friction stability, wear resistance, and transfer film formation. Characterization techniques included X-ray diffraction (XRD) for phase identification, thermogravimetric analysis (TGA) for thermal stability, pin-on-disc friction testing, and scanning electron microscopy (SEM) for wear surface analysis. The results show that platelet titanate particle size and composition significantly influence transfer film characteristics. Brake pads with potassium magnesium titanate and optimized particle size formed a more uniform and robust transfer film, improving friction stability and reducing wear rates. These findings demonstrate the importance of carefully controlling titanate composition and particle size to enhance brake pad performance. This research provides valuable insights for designing more durable and stable brake materials.