Silicon Carbide (SiC)
Silicon carbide is employed to produce high-quality ceramics with outstanding mechanical properties. It exhibits exceptional resistance to wear and heat. This material finds extensive use in abrasives, refractories, and kiln furniture for applications under extreme conditions.
Characteristics
No deformation at high temperature
Silicon carbide offers exceptional mechanical properties, even at high temperatures, making it a widely used material for sealing and structural support components.
High hardness
It has a hardness similar to that of a diamond.
Constant at high temperature
Its high stiffness and corrosion resistance remain consistent even at temperatures exceeding 100ºC. This makes it the preferred material for applications requiring high chemical and refractory resistance.
Applications
Silicon carbide products can be divided into 4 groups.
- Atmospheric pressure sintered silicon carbide (SSIC) is typically used in the manufacture of furnace beams, roller heads, flame nozzles, flame distributors, cold air ducts, burners, diffusion tubes, catalysts, and protection tubes, among others.
- Reaction sintered silicon carbide (SISIC) is used to manufacture sealing gaskets, high temperature nozzles, furnace furniture, bulletproof sheets, corrosion resistant devices, etc.
- Recrystallised silicon carbide (ReSIC) is used in the manufacture of furnace furniture such as beams, shed boards, fish plates, roller bars, etc.
- Silicon nitride bonded to silicon carbide (NSIC) is used to manufacture crucibles, fish plates, molten metal handling, melting platens, etc.
