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| Customization: | Available |
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| Classification: | High-Alumina |
| Feature: | Good Mechanical Strength, Good Thermal Insulation Performance, High-Temperature Resistant, Light Weight, Low Thermal Conductivity |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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Item | Testing Condition | 95% AL2O3 | 99% AL2O3 | 99.7% AL2O3 | ||
Physical properties | Density | g/cm3 | >3.6 | 3.89 | 3.96 | |
Moisture absorption | % | 0 | 0 | 0 | ||
Mechanical properties | ROHS Hardness | ≥85 | ≥89 | ≥89 | ||
Flexural strength | psiX103 | 20ºC | 358 | 550 | 550 | |
Compressive strength | psiX103 | 20ºC | 2068(300) | 2600(377) | 2600(377) | |
Fracture toughness | Mpa.m3/2 | K(l c) | 4.3 | 5.6 | 6.0 | |
Thermal properties | Maximum use temperature | ºC | 1450 | 1600 | 1650 | |
Thermal expansion coefficient | 1X10-6/ºC | (25-1000ºC) | 7.6 | 7.9 | 8.2 | |
Thermal shock resistance | ºC | Tc | 250 | 200 | 200 | |
Thermal conductivity | w/mok | 20ºC | 16 | 30 | 30.4 | |
Electrical properties | Volume resistivity | Ohm/cm2 | 100ºC | >1013 | >1014 | >1014 |
Dielectric breakdown strength | KV/mm | 8.7(220) | 8.7(220) | 8.7(220) | ||
Dielectric constant | (E) | 1MHz25ºC | 9 | 9.7 | 9. | |
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