Alumina Ceramic Powder
what is Alumina Ceramic Powder ?
Alumina ceramic powder is a functional powder primarily composed of alumina (Al₂O₃). It is produced through controlled purity, particle size distribution, and crystal structure. It exhibits excellent properties such as high hardness, high wear resistance, high insulation, and high-temperature resistance. It is the core base material for the production of various alumina ceramic products and is widely used in industries such as electronics, semiconductors, machinery, energy, medical treatment, and high-temperature structural components.
How is it different from ordinary alumina powder?
| Comparison Dimension | Regular Alumina Powder | Ceramic Grade Alumina Powder |
|---|---|---|
| Chemical Composition | Mainly Al₂O₃, with higher impurity content (e.g., Na₂O, Fe₂O₃, etc.) | Still Al₂O₃, but impurities are strictly controlled at ppm level |
| Purity | 95%–98% | ≥99%, 99.9%, up to 99.99% |
| Particle Size | Typically 1–50 µm, wide particle size distribution | Controllable between 20 nm–5 µm, extremely narrow particle size distribution |
| Crystal Structure | Mixed α-phase and γ-phase | Primarily α-Al₂O₃ (high-temperature stable phase) |
| Sintering Activity | High sintering temperature, difficult to densify | Low sintering temperature, easy densification, high product compactness |
| Typical Applications | Refractory materials, spraying, abrasives | Electronic ceramics, precision machinery parts, medical ceramics, semiconductors |
Our Advantage
KOSNANO’s alumina ceramic powder is more than just a high-end raw material; it offers a complete solution, helping you achieve product performance upgrades, increased yields, and global supply chain security. Our core strengths include: high purity control (impurities ≤ ppm); precise particle size control, resulting in high sintered density; high α-phase content, excellent thermal stability; and exceptional dispersibility. The powder surface undergoes a dispersion treatment, enabling rapid dispersion in both aqueous and organic systems without agglomeration.
KOSNANO offers ODM/OEM customization services, tailored to customer process requirements:
Particle size and distribution (D10/D50/D90);
α-phase content and sintering temperature range;
Surface modification (hydrophilic, hydrophobic);
Packaging specifications (10kg vacuum bag, 20kg drum, 500kg bulk bag);
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