What is the difference between α-phase and β-phase silicon carbide?
Silicon carbide has two main crystal phases: α-phase and β-phase. β-silicon carbide is a low-temperature stable phase. Theoretically, β-silicon carbide transforms into α-silicon carbide when the temperature is above 2100℃. Usually, what we see in the market is basically α-silicon carbide. Although there is some β-silicon carbide in the outer layer when α-silicon carbide is prepared, the volume is basically lost during the decomposition furnace because of the small amount of β-silicon carbide. The impurity content is large, and the crystal form does not grow well. There is no way to use it as a product alone. The preparation of β-silicon carbide powder alone requires more complex process technology
