High-Purity 99.6% Alpha Alumina Powder (CA & CN Series) | Low Shrinkage for Structural & Electronic Ceramics
Discover our CA & CN series 99.6% Alpha Alumina powder. Featuring small shrinkage, high density (≥3.95 g/cm³), and controlled crystal size for superior structural ceramics, electronic ceramics, and porous filters.
99.6% Alpha Alumina Powder for Advanced Ceramics | Low Shrinkage & High Performance
Our premium Alpha Alumina (α-Alumina) powders are engineered for high-performance applications in structural and electronic ceramics. Characterized by exceptionally low shrinkage and high purity, they ensure superior reliability and performance in demanding environments.
Key Product Specifications & Grades
| Parameter/Grade |
CA-5 |
CA-4 |
CA-3 |
CN |
| Al₂O₃ Purity (%) |
≥ 99.6 |
≥ 99.6 |
≥ 99.6 |
≥ 99.3 |
| SiO₂ (%) |
≤ 0.04 |
≤ 0.04 |
≤ 0.04 |
≤ 0.08 |
| Fe₂O₃ (%) |
≤ 0.03 |
≤ 0.03 |
≤ 0.03 |
≤ 0.03 |
| Na₂O (%) |
≤ 0.10 |
≤ 0.10 |
≤ 0.10 |
≤ 0.40 |
| LOI (%) |
≤ 0.1 |
≤ 0.1 |
≤ 0.1 |
≤ 0.2 |
| Density (g/cm³) |
≥ 3.95 |
≥ 3.95 |
≥ 3.95 |
≥ 3.95 |
| Original Crystal (μm) |
4.0 - 6.0 |
3.0 - 5.0 |
2.0 - 3.0 |
3.0 - 5.0 |
| D50 (μm) |
6.5 ± 1.0 |
6.0 ± 1.0 |
4.0 ± 0.5 |
6.5 ± 1.0 |
Primary Applications
- Electronic Ceramics: Ideal for substrates, insulators, and other critical components.
- Structural Ceramics: Used in high-strength, wear-resistant parts and components.
- Porous Ceramics & Ceramic Filters: Excellent for manufacturing filters and membranes.
- Advanced Molding Processes: Specifically formulated for Hot Die Casting Molding and Grouting Molding.
Product Series Highlights
CA Series: Low-Sodium Alpha Alumina
Key Features:
- Ultra-low sodium content for enhanced electrical performance.
- Controlled original crystal size (3-5 µm) ensures excellent powder fluidity and superior molding properties.
- Predictable and small shrinkage for precise dimensional control in sintered products.
- Consistent, stable performance suitable for a wide range of technical applications.
Typical Uses: Electronic ceramics, high-performance structural ceramics, and components made via hot die casting or grouting.
CN Series Alpha Alumina
Key Features:
- Optimized purity and chemistry for robust ceramic bodies.
- Favorable original crystal size (3-5 µm) for good molding and forming characteristics.
- Exhibits minimal shrinkage during firing.
- A versatile material for various industrial ceramic applications.
Typical Uses: Structural ceramics, porous ceramics, and ceramic filters.
Why Choose Our Alpha Alumina?
- High Purity & Consistency: Guarantees ≥99.6% Al₂O₃ content for reliable performance.
- Minimal Shrinkage: Enables the production of complex, dimensionally accurate components.
- Optimized Particle Sizing: Available in various D50 and crystal sizes to match your specific process needs.
- Proven Performance: Trusted for demanding applications in electronics, engineering, and filtration.
