Thermal Synthesis

Superior Graphite’s unique Electro-Thermal Treatment/PurificationTechnology for the high-temperature treatment of carbonaceous materials is based on a resistant-heated fluidized bed, which is used to synthesize carbidic materials of various compositions.

In the case of beta silicon carbide, two source materials, one carbon and one silicon bearing, are reacted in the furnace to form a unique form of beta silicon carbide. This high-temperature treatment leads to the formation of cubic beta silicon carbide, which differs from the well-known alpha silicon carbide in certain important aspects. Not only is the crystallographic structure different (hexagonal in case of alpha versus cubic in case of Beta SiC), but also properties effected by the atomic lattice like fracture and wetting characteristics. By applying additional non-thermal processing steps, a high-purity submicron powder is produced.

Fig. 01

Beta SiC Structure

Fig. 02

Manufacturing Process, Synthesis of Materials

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