Yixing Hengyuan Ceramic Technology Co., Ltd.
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Cordierite is a mineral with extremely high hardness, high density, and good wear resistance, which can effectively improve the physical properties of ceramics. Compared with other materials, cordierite has a higher coefficient of thermal expansion and thermal conductivity, which can effectively control the shrinkage rate and thermal stability of ceramics.
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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 | |
|
Bending Strength
| 20℃ | Kgf/cm2 | 900 |
|
Compressive Strength
| 20℃ | Kgf/cm2 | 3500 |
|
Fracture Toughness
| K(I c) | Mpa m1/2 | - |
|
Thermal expansion
| 1X 10-6/℃ | ≤2.0 | |
|
Thermal conductivity
| 25℃-30℃ | W/m.k | 1.3 |
|
Thermal Shock Resistance
| Tc | ℃ | 250 |
|
Dielectricity constant
| 1MHz.25℃ | 6 | |
|
Dielectric strength
| ac-kV/mm (ac V/mil) | 10 | |
|
Volume Resistivity
| 20℃ | ohm-cm | > 1012 |
