The production of silicon carbide single crystal requires high-purity silicon carbide powder as the raw material. The synthesis of silicon carbide raw materials is the most common method of solid-phase synthesis of high-purity carbon powder and high-purity silicon powder.
The ultra-high temperature graphitization purification system independently developed by HNDL Graphite Technology Corp., a leading manufacturer of high-purity graphite materials in China, can realize the continuous production of high-purity graphite with a carbon content of ≥99.999%. At the same time, it has developed a high-purity carbon powder that can be used as a raw material for the generation of silicon carbide single crystals, and the highest purity can reach more than 99.9999%. Various indicators and performance Danone's domestic leading level, to achieve material import substitution.