Calcined
α-alumina is also called high-temperature alumina. It has a white fine granular appearance. It is calcined at high temperature from industrial aluminum hydroxide or alumina raw materials. It has a high melting point (2053ºC), good thermal stability, and low impurity content , Good electrical insulation; stable crystal structure, acid and alkali corrosion resistance; high hardness (Mohs hardness 9), good wear resistance and other excellent characteristics. Therefore, it is widely used in ceramics, refractory materials, grinding and polishing, petrochemical industries and other industries.
Application in Ceramics field:
It is used in wear-resistant ceramics, electronic ceramics, functional ceramics, daily ceramics and other fields.
Specification
item | impurity content ≤(%) | ΑL2O3≥(%) | α- ΑL2O3≥(%) | True Densit≥(g/cm3) |
| Nα2O | SiO2 | Fe2O3 | | | |
AT-C | 0.05 | 0.03 | 0.02 | 99.6 | 95 | 3.95 |
AT-C | 0.20 | 0.03 | 0.02 | 99.5 | 94 | 3.94 |
Particle Size (D50μm): it can be adjusted appropriately according to your needs |
FAQ
Q: Are you factory?
A: Yes, we are factory.
Q: How is your quality?
A: We have top grade production equipment and precision measuring instruments and we also have engineers and technicians carry out quality control.
Q: Can you supply free samples?
A: 1kgs free sample is available, but freight charges will be at your account, The charges will be return to you or deduct from your order in the future.
Q: What about the payment?
100% T/T in advance, 30% T/T in advance, the balance 70% against the B/L copy, Irrevocable L/C at sight
Q: The MOQ is?
A: MOQ is usually 1 ton, special products can be coordinuted with each other.
Q: Can I visit your factory?
A: Yes, we welcome you to visit our factory at anytime
Q: How about your delivery time?
A: Usually the shipment is within 15 days after confirming receipt of your payment, some products maybe need longer time.