High Level Product Silicon Carbide

Carbon/Silicon carbide is a new type of high-performance ceramic-based friction material that has developed in recent years. It has a series of advantages including low density, good oxidation resistance, high friction performance, and stable performance. It has broad application prospects in high-energy braking fields such as high-speed trains, airplanes, and heavy-duty vehicles. The reactive melt infiltration method is an effective way to prepare carbon/silicon carbide friction composites.

1.Nanometallic nickel was uniformly dispersed into polycarbosilane, and silicon carbide fibers containing nickel were prepared through melt spinning, non-melting treatment, and sintering. It was found that doping with nano nickel increased the melt spinning temperature of polycarbosilane and resulted in an increase in the diameter of the spun fibers. The silicon carbide fibers made when controlling the fiber weight gain rate during the non-melting treatment process to be between 9% and 11% exhibited the best mechanical properties. The optimal sintering temperature for nickel-containing silicon carbide fibers is 1250°C. The primary form of nickel present in the ceramic fibers is nickel-silicon intermetallic compound. The introduction of nano nickel facilitated the growth of β-SiC grains during the sintering process.

Hot Tags: high level product silicon carbide, China high level product silicon carbide manufacturers, suppliers, factory