High Alpha Phase Content (>95%) Low Sodium (<0.08%) Calcined Alumina for Fine Ceramics with Precisely Controlled Particle Size
Basic Properties
Place of Origin:
China
Brand Name:
KEGU
Model Number:
Customizable
Trading Properties
Price:
200-500 yuan/kg
Payment Terms:
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability:
2,000 pcs/month
Product Summary
Premium Calcined Alumina for Fine Ceramics High-performance calcined alumina featuring high alpha phase content (>95%), low sodium (95%): Ensures optimal sintering behavior and final ceramic density, leading to superior mechanical and thermal properties. Low Alkali Content (Na₂O ≤ 0.08%): Minimizes ...
Product Details
Highlight:
99.7% Aluminum Oxide Ceramics
,Aluminum Oxide Ceramics 1um
,2um Calcined Aluminas
Material:
SiC
Composition:SiC:
＞85%
Color:
Black
Density:
≥3.65g/cm3
Max. Service Temp:
1380℃
Flexural Strength:
250MPa
Hardness:
≥84HRA
Water Absorption:
≤0.2%
Abrasion:
< 0.02%
Bending Strength:
≥290MPa
Product Description
Premium Calcined Alumina for Fine Ceramics
High-performance calcined alumina featuring high alpha phase content (>95%), low sodium (<0.08%), and controlled particle size for die pressing, isostatic pressing and other ceramic forming processes.
High-Purity Calcined Alumina for Demanding Fine Ceramic Applications
Our premium calcined alumina is engineered for manufacturers of high-performance technical ceramics. Produced in a tunnel kiln under strict thermal controls, it delivers a consistent and reliable foundation for components where purity, microstructure, and sintering performance are critical.
Core Product Advantages
- High Alpha Phase Content (>95%): Ensures optimal sintering behavior and final ceramic density, leading to superior mechanical and thermal properties.
- Low Alkali Content (Na₂O ≤ 0.08%): Minimizes the risk of glass phase formation and grain growth anomalies during firing, resulting in a more predictable and stable microstructure.
- Exceptional Chemical Purity (Al₂O₃ ≥ 99.7%): Reduces impurities that can compromise the performance, color, and electrical insulation of the final ceramic product.
- Precisely Controlled Particle Size: Multiple grades available with tightly controlled particle and crystal sizes, allowing for tailored powder packing and shrinkage management.
Technical Data Sheet: Calcined Alumina Grades
The following table outlines key specifications for our standard grades. Custom formulations are available upon request.
| Grade | Al₂O₃ (%) ≥ | SiO₂ (%) ≤ | Fe₂O₃ (%) ≤ | Na₂O (%) ≤ | α-phase (%) ≥ | Average Particle Size (µm) | Primary Crystal Size (µm) |
|---|---|---|---|---|---|---|---|
| ALC-11 | 99.7 | 0.04 | 0.02 | 0.03 | 95 | - | 3.0 - 7.0 |
| ALC-12 | 99.7 | 0.05 | 0.04 | 0.05 | 95 | - | 1.0 - 3.0 |
| ALC-11G | 99.7 | 0.10 | 0.03 | 0.05 | 95 | 4.0 - 6.0 | - |
| ALC-12G | 99.7 | 0.10 | 0.04 | 0.05 | 95 | 3.0 - 4.0 | - |
| ALC-13G | 99.7 | 0.15 | 0.04 | 0.08 | 95 | 2.0 - 3.0 | - |
| ALC-21G | 99.7 | 0.10 | 0.04 | 0.05 | 95 | 2.5 - 3.5 | - |
Applications in Advanced Ceramics
Our calcined alumina is the material of choice for a wide range of technical ceramic forming processes and end-products:
Forming Processes
- Dry Pressing & Isostatic Pressing: Excellent flowability and compaction for high-density green bodies.
- Hot Pressure Casting: Suitable for complex shapes and high-volume production.
End-Use Components
- Structural Ceramics: High-wear components, liners, and nozzles
- Ceramic Seals: Mechanical face seals requiring high hardness and corrosion resistance
- Electronic Substrates & Insulators: Where high purity ensures excellent electrical properties
- High-Quality Alumina Grinding Media & Balls: Used as raw material for granulation in premium alumina grinding bodies
Your Partner for High-Performance Ceramic Materials
We understand that your ceramic products are only as good as the raw materials you use. By providing consistently high-purity calcined alumina with tailored physical properties, we empower you to manufacture more reliable, higher-performing ceramic components.
Interested in seeing how our alumina can improve your product? Contact our technical team today to discuss your specific requirements and request product samples or a technical datasheet.
Miss. Scarlett.S
Deputy Head of Foreign Trade Department
- Email: scarlett.s@kegugroup.com
- Tel: 8616602956098
- WhatsApp: 8613390790728
-
WeChat:
Scarlettseren533
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