High-purity alumina has a high melting point, high hardness, and good chemical stability.
High alumina crucibles are widely used for laboratory, chemical calcination, metal casting, and ceramic sample preparation.
1. High thermal conductivity and compressive strength
2. Good thermal shock resistance and wear resistance
3. Low thermal expansion
4. Good chemical resistance against acid or alkali
5. Electrical insulation
6. Cost effective
1. For laboratory uses
2. For metal evaporation, metal casting
3. For chemical calcination
4. For ceramic sample preparation
| Material | Aluminum Oxide |
|---|---|
| Purity | 99% |
| Application | Metal evaporation, laboratory, etc |
| Size | Customized |
| Packing | Wooden case with carton box |
| Items | Typical Value |
|---|---|
| Composition | Al2O3 99% |
| Color | Ivory |
| Density | 3.8-3.85 g/cm3 |
| Bending Strength | 300 MPa |
| Hardness | 1700 HV |
| Thermal Conductivity | 31 W/(m K) |
| Thermal Expansion | 8×10-6/K |
| Volume Resistivity | >1012 Ωcm |
| Dielectric Strength | 20 KV/mm |
| Dielectric Constant | 9.2-10.5 |
| Max. Working Temperature | 1550 °C |
