Machining / Grinding Sialon Ceramics

CiDRA® Precision Services, LLC has years of experience manufacturing micron level tolerance products from Sialon ceramics. We leverage our in-depth dicing, drilling, milling, grinding, and polishing capability to manufacture the highest quality Sialon products.

Whether you need prototypes or volume production, CiDRA® Precision Services, LLC is here to help. Please contact us to discuss your applications.

About Sialon Ceramics

Sialon, which stands for Silicon Aluminum Oxynitride (SiN-SiO2-Al2O3-AlN), is a Silicon Nitride ceramic with a small percentage of Aluminum Oxide added. Sialon is a gray, nonporous, engineering material with good thermal shock resistance, high strength, and is not corroded by aluminum, brass, bronze, or other common industrial metals.

Sialon Applications

  • Vacuum parts
  • Refractory components
  • Heat sinks

Sialon Properties

 

Units

Sialon
Max Use Temperature (No Load) C 1200
Thermal Shock (Quenching) C
Thermal Conductivity W/(m K) 15 - 25
Specific Heat  J/(K kg) 880
Coefficient of Thermal Expansion 1/C (x10e-6) 2.7 - 6.8
Color Gray
Moh Hardness
Vickers Hardness kg/mm^2
Knoop Hardness kg/mm^2 1600 - 1800
Density g/cm^3 3.1 - 3.7
Porosity % of nominal 0 - 1
Compressive Strength Mpa 2070-3520
Tensile Strength Mpa 190
Flexural Strength MPa 300 - 760
Fracture Toughness MPa m^1/2 4 - 8.0
Young's Modulus GPa 290 - 320
Poisson's ratio 0.23 - 0.25
Dielectric Strength kv/cm 83.4
Dielectric Constant (@1MHz) 9.3
Dielectric Loss Tangent
Resistivity ohm cm >10^14
The information provided in this table is for room temperature only, and is a compilation of publicly available data.  This information is provided for comparison purposes only, and is not intended to be warrantable.   Further, CiDRA® Precision Services, LLC disclaims any and all liability from errors, inaccuracies, or omissions.

 

Please contact us if you would like to discuss your Sialon dicing, drilling, milling, grinding, polishing or any other machining applications.