China Industrial Alumina Ceramic Block
Electrical insulation. Most ceramic materials are excellent electrical insulators. Alumina, for instance, with a room-temperature volume resistivity of more than 10 14ohm-cm and a melting point of 2,090°C, is ideal for spark-plug insulators.
Product Description
1. Material: 99%Alumina
2. High intensity
3. Wear resistance, excellent performance
4. Shaped as your designing and requirment
2. High intensity
3. Wear resistance, excellent performance
4. Shaped as your designing and requirment
Specification of China Industrial Alumina Ceramic Block
| Items | Unit | 95%Al2O3 | 99.5%Al2O3 |
| Density | g/cm3 | 3.7 | 3.9 |
| Flexural Strength | MPa | 313 | 340 |
| Compressive Strength | MPa | 3400 | 3600 |
| Modulus of Elasticity | GPa | 350 | 380 |
| Impact Resistance | MPa·m1/2 | 4 | 5.1 |
| Weibull Modulus | m | 10 | 10 |
| Vickers Hardness | HV0.5 | 1800 | 1900 |
| Thermal Conductivity | W/mk | 24 | 27 |
| Highest Application Temperature | ºC | 1600 | 1750 |
| Volume Resistivity at 20ºC | Ω.cm20 | >10 14 | >10 14 |
| Dielertric strength | KV/mm | 20 | 25 |
| Thermal expansion | X10-6/K | 5.0-8.3 | 5.4-8.3 |
