Key Properties
Low density
High strength
Low thermal expansion
High thermal conductivity
High elastic modulus
Outstanding thermal shock resistance
Extreme hardness
Superior chemical inertness
Applications
Turbine components
Suction box covers
Pump Seals
Bearings
Ball valve parts
Gas flow liners
Heat exchangers
Semiconductor process equipment
Silicon Carbide (SiC)
SiC has been manufactured into a high quality technical grade ceramic with very good mechanical properties. It is used in abrasives, refractories, ceramics, and many high-performance applications.
The material can also be made an electrical conductor and has applications in resistance heating, flame igniters and electronic components. Structural and wear applications are constantly developing.
Silicon carbide is not attacked by acids or alkalis or molten salts up to 800°C.
In air, SiC forms a protective silicon oxide coating at 1200°C and is able to be used up to 1600°C.
The high thermal conductivity coupled with low thermal expansion and high strength gives this material exceptional thermal shock resistant qualities.
