Leading Supplier of High-Performance Silicon Carbide Kiln Furniture for the Refractory Industry.
Enhancing Efficiency and Durability in Refractory Applications Worldwide
Silicon carbide (SiC) is a high-performance ceramic material made of high-quality, non-oxide powders and can be manufactured to the specific requirements of a wide range of applications.
Due to its excellent tribological properties in combination with low weight, high hardness, high thermal conductivity, relatively low thermal expansion, resistance to corrosion and abrasion.
The SiC particle retains its elastic resistance even up to a temperature of 1700°C, which leads it to a highly diverse range of industrial applications.
Explore our range of silicon carbide kiln furniture:
Silicon Carbide (Oxide-bonded) is a kind of refractory material with silicon carbide as the main crystalline phase and oxide as the binding phase.
During sintering, the silica reacts to create strong oxide bonds between SiC particles, resulting in a material with good thermal and mechanical stability.
OSiC is cost-effective and suitable for medium-temperature applications such as kiln furniture and refractory linings.
The biggest advantage of OSiC is its excellent cost-performance ratio, offering reliable performance in industrial processes at a relatively low material cost.
It is manufactured by infiltrating compacts made of mixtures of SiC and carbon with liquid silicon. The silicon reacts with the carbon firming more SiC which bonds the initial SiC particles.
The infiltration gives reaction-sintered silicon carbide high strength, wear resistance, and thermal conductivity. The maximum operating temperature is 1380ºC, and chemical resistance is limited to pH 10.
Support beams, pillars, burner nozzles, cooling air pipes, rollers, setter plates, saggers, nozzles, etc. are the typical products that are used in the furnace.
Nitride-bonded Silicon Carbide is composed of silicon carbide (SiC) bonded by silicon nitride( Si3N4).
Compare to SiC (Oxide-bonded), it is a higher-class SiC refractory and exhibits exceptional thermal shock resistance and oxidation resistance, and mechanical strength.
It can be formed into a variety of relatively complex shapes with good tolerance control. Maximum service temperature can be up to 1550ºC, and it is especially suitable for firing between 1200ºC to 1450ºC for a long time.
It is typically used for batts, plates, beams, tubes, metal alloy components, etc.
Recrystallized Silicon Carbide (RSiC) is made from high-purity silicon carbide powder through a high-temperature recrystallization process without adding any binders.
This results in a strong, porous structure with excellent high-temperature performance. RSiC is ideal for use in harsh industrial environments such as kilns and furnaces.
Its key features include high thermal stability, oxidation resistance, and long service life.
The biggest advantage of Recrystallized Silicon Carbide (RSiC) is its outstanding thermal shock resistance combined with long service life at high temperatures.
Sintered silicon carbide (SSiC) is a polycrystalline alpha type silicon carbide produced from pure submicron SiC powder with non-oxide sintering aids. It is processed in a proper ceramic forming process of extrusion, dry pressing or isostatic pressing, and sintered at 2,200℃ in an inert gas atmosphere.
This advanced technique produces a fully dense, non-porous ceramic with excellent structural strength and purity. SSiC is widely used in demanding industrial applications due to its ability to maintain integrity in harsh environments.
The biggest advantage of SSiC is its exceptional corrosion resistance, especially in strong acids, alkalis, and high-temperature gases.
At FIRLLER, we specialize in supplying premium silicon carbide kiln furniture designed to meet the rigorous demands of the refractory industry.
With years of expertise and a commitment to innovation, we deliver solutions that enhance performance and longevity in high-temperature environments.
