insulating eletronic Iolite cordierite ceramic custom made high temperature components supplier
Cordierite Ceramics:
The main raw materials of cordierite ceramics are talc, clay, alumina, feldspar and so on. Made in a general ceramic process. The sintering range is narrow, and the sintering temperature is only a few degrees away from the decomposition temperature of cordierite, making it difficult to obtain a dense body. As an additive, chlorite, magnesium carbonate, barium carbonate, zirconium silicate, zirconium dioxide, boron trioxide, spodumene, etc. are often used as additives to lower the sintering temperature, expand the firing temperature range, and improve the dielectric properties. It can be used as a coil bobbin, an electric insulating material resistant to arcing, a base material of a composite material, a material of a burner nozzle of an electric heating insulating device etc.
Mullite Ceramics properties:
Cordierite ceramics have the characteristics of acid resistance, wear resistance, high temperature resistance, corrosion resistance, antistatic, high hardness, light weight, and prolonged service life of more than ten times.
Data Sheet↓
Item | Unit | Typical Values |
Physical Properties |
Color | White/Ivory |
Raw material | / | Talc, clay, alumina, feldspar |
Gas permeability | 0 |
Water Absorption | 0 |
Mechanical Properties |
Rockwell Hardness(45N) | R45N | 40 |
Vickers Hardness (Load 500g) | Gpa(Kg/mm²) | 11.5(1175) |
Flexural Strength | Mpa | 50~60 |
Compressive Strength | Mpa | 280~500 |
Modulus of Elasticity(25°C) | Gpa | 65 |
Thermal Properties |
Thermal Conductivity | kJ/(m2·h·ºC)(0~100ºC) | 3.35~5.02 |
Thermal Expansion Coefficient | 10-7/ºC | 5.5 |
Thermal Shock Resistance | △T°C | 200 |
Maximum Use Temperature | °C | 1400 |
Electronic Properties |
Dielectric Constant | Er | 3.5-3.7 |
Volume Resistivity(400~600ºC) | Ω.cm | 2.3~5.6M |
Application :
Cordierite ceramics are widely used in electronics, electrical appliances, welding equipment, chemicals, machinery, railways, textiles, environmental protection, thermal engineering, instrumentation, mining machinery, post and telecommunications and defense industry.