Abrasion Resistance Alumina Ceramic Ring SSiC Silicon Carbide Seal Rings

Silicon Carbide Seal Rings SSiC Sleeves SSiC Disc Alumina Ceramic Parts Machinery Components Abrasion Resistance

Silicon carbide is a crystalline compound of silicon and carbon by synthetic production. It has long been used as an important material for grinding wheels and cutting tools for its exceeding hardness. More recently, it has a wide application in wear-resistant components for pumps, automobiles, plant machines and engineering, in refractory linings and heating elements for industrial furnaces, in thermal shock-resistant parts in rocket engines. Silicon carbide has the highest hardness among synthetic materials known, which Mohs hardness reaches rating of 9, close to that of diamond. Its high thermal conductivity, together with its high-temperature strength, low thermal expansion, and resistance to chemical reaction, makes silicon carbide valuable in the manufacture of high-temperature bricks and other refractories.

The wear and corrosion properties of mechanical components are very important for plant machines because they have a great impact on cost-effectiveness of production. Plant machines or equipment that convey or process abrasive, acid or alkali substance have strict demands on corrosion resistance and abrasion resistance properties of mechanical components, such as ones used in the chemical, food and beverage and pharmaceutical industries. Advanced ceramics solution for those machines or equipment ensure longer service life, lower maintenance cost and are thus more economical overall.

It is also classed as a semiconductor, having an electrical conductivity between that of metals and insulating materials. This property, in combination with its thermal properties, makes SiC a promising substitute for traditional semiconductors such as silicon in high-temperature applications.

Properties of Silicon Carbide (SSiC / SSiC)

Low density (3.07 to 3.15 g/cm3)

High hardness (HV10 ≥ 22 Gpa)

High Young’s modulus (380 to 430 Mpa)

High thermal conductivity (120 to 200 W/mK)

Low coefficient of linear expansion
(3.6 to 4.1x10-6/K at 20 to 400°C)

Maximum operating temperature of SSiC under inert gas: 1,800°C

Excellent thermal shock resistance of SSiC: ΔT 1,100 K

Erodible

Corrosion and wear resistant even at high temperatures

Toxicologically safe

Good gliding properties

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