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   Super Hardness

   Low Thermal Expansion Coefficient

   High Mechanical Strength and Fracture Toughness

   Resistant to Deformation at Elevated Temperture

   Valves, Pistons for Gas Turbines

   Parts for Diesel Engines

   Bearings

   Cutting Tools for Processing Gray Cast Iron,High Manganese Steel, Nickel Base Alloy,Titanium Base Alloy, Silicon-chromium Base Alloy,Carbon Steel and Other Non-ferrous Metals

Silicon Nitride (Si₃N₄)

Characteristics of Material

Technical Parameters	Unit	Value
Bulk Density	g/cm3	3.2
Hardness	HRA	93 ~ 94
Thermal Expansion Coefficient	×10-6/℃	2.8 - 3 (at 0 ~ 1400℃)
Fracture Toughness	MPam1/2	6 ~ 8
Bending Strength	MPa	900
Thermal Conductivity	W/m.K	10 ~ 45
Dieectric Strength	kV/mm	> 10
Volume Resistiity	Ωcm	> 1014