Yixing Hengyuan Ceramic Technology Co., Ltd.
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Cordierite is mainly used as ceramic kiln shed plate, saggar, electronic packaging material, catalyst carrier, foam ceramics, bioceramics and high-temperature thermal radiation materials. The natural reserves of cordierite are very small and the grade is low. The commonly used cordierite material is artificially synthesized. Due to its low coefficient of thermal expansion, strong compressive strength, and strong fire resistance, it is widely used in the refractory industry. Cordierite has a low coefficient of thermal expansion and is an excellent high-temperature thermal shock resistant material.
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Item
| Test Condition | Unit&Symbol | Cordierite Ceramics |
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The main chemical ingredient
| MgO, Al2O3,SiO2 | ||
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Bulk Density
| gm/cc | 2.6 | |
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Maximum Use Temperature
| 1400℃ | ||
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Hardness
| HV | 800 | |
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Bending Strength
| 20℃ | Kgf/cm2 | 900 |
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Compressive Strength
| 20℃ | Kgf/cm2 | 3500 |
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Fracture Toughness
| K(I c) | Mpa m1/2 | - |
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Thermal expansion
| 1X 10-6/℃ | ≤2.0 | |
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Thermal conductivity
| 25℃-30℃ | W/m.k | 1.3 |
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Thermal Shock Resistance
| Tc | ℃ | 250 |
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Dielectricity constant
| 1MHz.25℃ | 6 | |
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Dielectric strength
| ac-kV/mm (ac V/mil) | 10 | |
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Volume Resistivity
| 20℃ | ohm-cm | > 1012 |
