Comparison between Nano-and Micro-Sized Copper Particles as Fillers in NAO Friction Materials

• DOI: 10.5772/56822
• Publication Date: 2013-08-02T09:24:45Z
• Authors: Sanjeev Sharma; Jayashree Bijwe; Mukesh Kumar
• Keywords: Filler (materials); Brake pad; Dynamometer

In this study, the comparative role of nano-and micro-sized Cu powder in exploring influence on tribo-performance friction materials form brake-pads is discussed. Two composites were developed by keeping allthe ingredients constant and varying size selected filler (copper powder). The micro-composite contained 10 % (wt) (400–600 μm) while nano-composite only a part (2 %) micro-powder was replaced nano-powder (50–200 nm) since replacement not possible because agglomeration problem. One more composite without any metallic also for sake comparison. For tribo-evaluation, brake-dynamometer testing selected. performance properties, such as friction, wear sensitivity towards load, speed temperature studied per industrial practice. It concluded that inclusion nano-Cu (just 2 improved properties significantly. Micro-composite moderate performer proved poorest. quality tribo-layer transferred to disc SEM confirmed be one reasons nano-composite.