Advanced & Machinable
Metal Matrix Composites

Advanced ceramics with
high purity and rigidity for
precision applications

Silicon Nitride Si3N4

Silicon Nitride Ceramics offer high thermal, shock, and impact resistance. With it's exceptional thermal and shock resistance properties, combined with it's high strength, Silicon Nitride is a leading choice for high-temperature, high-load applications.


  • Semiconductor Process Equipment
  • General Industrial Machinery
  • Heat resistance parts

Silicon Nitride Ceramics


General Properties Main Component Purity (wt%) 90
Color Gray
Density (g/cm3) 3.25
Water Absorption (%) 0
Mechanical Properties Bending Strength (MPa) 785
Young's Modulus (GPa) 285
Vickers Hardness (GPa) 16
Thermal Properties Max.Operating Temperature (°C) 1200
Coefficient of Thermal Expansion (1/°C×10-6) RT~500°C 3.5
RT~800°C 4.2
Coefficient of Thermal Conductivity (W/m×K) 13
Thermal Shock Resistance ΔT (°C) 650
Electrical Properties Volume Resistivity 25°C 1016
300°C 1014
500°C 1011
800°C 107
Dielectric Constant 10GHz 8.3
Dielectric Loss (×10-4) 25
Q Factor (×104) 0.04
Dielectric Breakdown Voltage (KV/mm) 14