Silicate Ceramics
Silicate ceramics are a type of ceramic material that is made from compounds containing silicon and oxygen, which are known as silicates. Silicate ceramics can be formed through various methods, such as sintering, hot pressing, and slip casting.
Read more: What Are Silicate Ceramics?
Silicate Ceramic Properties:
Property | Units | Cordierite | Mullite |
Color | -- | Orange - Tan | Gray - Tan |
Crystal Size (Average) | Microns | -- | 7 |
Water Absorption | % | 10 | 0 |
Max Use Temp | Celsius (°C) | 1290 | 1700 |
Density | G/Cc | 2 | 3 |
Hardness | GPa (Kg/Mm2) | 5.8 (590) | 10 (1000) |
Tensile Strength @ RT | MPa (Psi X 103) | 19 (2.7) | 138 (20) |
Compressive Strength @ RT | MPa (Psi X 103) | 165 (24) | 1034 (150) |
Elastic Modulus | GPa (Psi X 106) | 103 (15) | 179 (26) |
Poisson's Ratio | -- | 0.31 | 0.24 |
Silicate ceramic components are used in electronics and electrical engineering and act as electrical insulation infuses, circuit breakers, thermostats and lighting technology.
The ability of silicate ceramic materials to provide thermal insulation is also utilized in heating, environmental and thermal engineering applications.
Porous components are produced for the emission of fragrances and insecticides, as carriers for catalysts or for various applications in laboratories.
Precision components for applications in measurement technology and products for laboratory use and mixed media complete.
Advanced Ceramic Materials (ACM) is a leading supplier of silicate ceramic products of the highest quality for a wide range of applications. We are happy to provide advice on materials, design, and application. Feel free to contact us with any questions about mullite, cordierite or other ceramic materials that are not listed on the website.
Chemical Formula | 2MgO·2Al2O3·5SiO2(Cordierite) |
Mechanical | |
Density | 2.6 g/cm³ |
Hardness | 7 Mohs |
Modulus of Elasticity | 140 GPa |
Flexural Strength | 90-150 MPa |
Compressive Strength | 1.0 GPa |
Poisson's Ratio | 0.25 |
Fracture Toughness | 1.5-2.0 MPa·m¹/² |
Electrical | |
Dielectric Strength | 12 kV/mm |
Dielectric Constant | 5.0 (@ 1 MHz) |
Volume Resistivity | >1014 ohm·cm |
Thermal | |
Coefficient of Thermal Expansion | 2 x 10-6 /°C |
Thermal Conductivity | 3 W/m·K |
Specific Heat | 0.8 J/g·K |
Shock Resistance | - |
Maximum Working Temperature | 1370 °C |