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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.
