Searching from applications: Characteristics of SiC

For refractory and ceramic construction materials

  • Aggregate (building and construction material)
  • Filler materials

Traditionally, the Silicon Carbide is used for refractory materials. Recently, because it's an ideal material for erosion and wear, and low coefficient, it also can be used for DPF(Diesel particulate filter), mechanical seal running components and semiconductor wafer,etc

Raw material (coarse and fine micro powder)for kiln furniture
Compared with other refractory materials, Silicon carbide (SiC) is highly resistant to heat and it is stable in high temperatures. Owing to its excellent performance, the coarse and fine ultrafine powder is extensively used for kiln furniture, rack dryer, refractory slab and shelf plate, etc.

Raw material for Diesel Particulate Filter
In recent years, the environmental issue became a global problem. Silicon carbide also can be used in diesel vehicles, to help to remove a majority of the NOx, particulate matter (think black, cough-inducing soot) and unburned hydrocarbons from burned diesel fuel.

Raw material for fine ceramic
Recent years, using characteristics of method for producing a ceramic joined body having high heat resistance and chemical reaction resistance, various products are offered for the ultra fine powder materials for the fine ceramic which controlled the purity of silicon carbide, diameter of the particle, particle size distribution with high precision.

Characteristics of SIC

Character Green powder, black powder
Hardness New Mohs hardness: 13
(diamond new Mohs hardness: 15)
Bulk specific gravity 3.15 to 3.20 g/cm3
Thermal conductivity (W/m·K) 270
The rate of thermal expansion(10-6/ °C) 20 °C 4.5
Heat resistance decomposition temperature 2,545 °C.
Chemical resistance Silicon carbide (SiC) is chemically stable, and resists corrosion by acids and bases
Semiconductor properties Semiconductivity, Volume resistivity Value (Ω·cm): 1×104
Fine polishing powder
Aggregate products
Filler products
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