SiAlON Ceramic Material

SiAlON, Silicon Aluminum Oxynitride, is an exceptional material for high-temperature applications that are subject to thermal shock. SiAlON Ceramics are an outstanding choice for extreme structural applications with high-temperature exposure.


  • Semiconductor equipment parts
  • General industry machinery parts
  • Heat resistant parts
  • Abrasion resistant parts

Silicon Nitride Ceramics Products Photo


General properties Main component purity (wt%) 90
Color Gray
Density (g/cm3) 3.2
Water absorption (%) 0
Mechanical properties Bending strength (MPa) 880
Young’s modulus (GPa) 290
Vickers hardness (GPa) 12
Thermal properties Max. operating temperature (°C) 1300
Coefficient of thermal expansion (1/°C×10-6) RT~500°C 2.4
RT~800°C 2.9
Coefficient of thermal conductivity (W/m×K) 27
Thermal shock resistance ΔT (°C) 800
Electrical properties Volume resistivity 25°C 1015
Dielectric constant 10GHz 8
Dielectric loss (×10-4) 14
Q factor (×104) 0.7
Dielectric breakdown voltage (KV/mm) 15