Black Silicon Carbide Powder With Unique Performance

Black silicon carbide powder is an important special ceramic material and a kind of advanced composite material. The main components of black silicon carbide powder are silicon (about 6%) and carbon (about 94%), and its chemical composition is SiC. Its structure is similar to diamond, and it has high hardness characteristics. It is one of the hardest materials in nature.

Black silicon carbide powder is made of quartz sand, petroleum coke, silica and other raw materials through high-temperature smelting. Common preparation methods include carbon thermal reduction, sol-gel, chemical vapor deposition (CVD) and the like. The carbon thermal reduction method is to heat a mixture of quartz sand and petroleum coke to a high temperature in a resistance furnace to fully react to obtain SiC. The sol-gel method is to dissolve the raw materials in a solvent to form a uniform solution, and then obtain SiC micropowder through steps such as hydrolysis, polymerization, drying, and heat treatment. The chemical vapor deposition method is to inject gas into a closed environment to produce a chemical reaction to obtain SiC powder. However, this method has high cost and low yield, which is not conducive to mass production.

Black silicon carbide powder has a large density and high hardness, so it has high strength characteristics. Black silicon carbide powder has excellent high temperature resistance and can work normally at temperatures up to 1600℃ or even 1850℃, while maintaining good physical and chemical stability. It has excellent corrosion resistance and exhibits good corrosion resistance to strong corrosive media such as acids and alkalis at room temperature or high temperature. Its hardness is second only to diamond, and its Mohs hardness can reach 9.15 to 9.5, making it suitable for the manufacture of high-precision abrasive tools. Black silicon carbide powder has strong thermal conductivity and a low thermal expansion coefficient, which helps to maintain volume stability. Black silicon carbide micropowder treated by a specific process has high cleanliness, no impurities, and good fluidity.

Due to its high hardness, black silicon carbide powder can be used to make high-precision abrasive tools, such as grinding wheels, emery cloth, etc., for cutting and grinding various materials. Black silicon carbide powder can be used to make refractory materials and high-temperature seals, and performs well in high-temperature environments such as metallurgy and chemical industry. It can also be used in the manufacture of electronic components such as semiconductors, such as heat sinks and substrates, to improve the efficiency and stability of electronic components. 

Hot Tags: black silicon carbide powder with unique performance, China black silicon carbide powder with unique performance manufacturers, suppliers, factory, Silicon Nano Powder 98 8, ferrovanadium 80, Tungsten alloys 70%, Ferro Silicon Aluminum Block, Low Aluminum Ferro Silicon Ball, Ferro Wolfram Powder