Silicon Nitride (Si3N4) is the most adaptable technical ceramic material in terms of mechanical, thermal, and electrical properties. It is a high-performance technical ceramic that is exceptionally strong and resistant to thermal shock and impact. It outperforms most metals at high temperatures and has an excellent mix of creep and oxidation resistance. Furthermore, due to its low thermal conductivity and great wear resistance, it is an outstanding material capable of withstanding the harshest circumstances in the most demanding industrial applications. When high-temperature and high-load capabilities are required, Silicon Nitride is a suitable alternative.

Wintrustek produces Silicon Nitride ceramics using three sintering methods:

Gas Pressure Sintering

Hot Pressing (HP) Sintering

Hot Isostatic Pressing (HIP) Sintering 

Typical Properties

High strength over a wide temperature range

High fracture toughness

High hardness

Outstanding wear resistance

Good thermal shock resistance

Good chemical resistance

Typical Applications

Grinding balls

Valve balls

Bearing balls

Cutting tools

Engine components

Heating Element components

Metal extrusion die

Welding nozzles

Welding pins

Thermocouple tubes

Substrates for IGBT & SiC MOSFET