5N high-purity alumina polycrystalline raw material
- Commodity name： 5N high-purity alumina polycrystalline raw material
- =Main purpose： 1. Sapphire single crystal 2. LED substrate wafer 3. Smartphone cover glass 4. Glass coating
- =Product overview： 1. High purity: The high-purity alumina polycrystalline feedstock does not come into contact with any metals or atmospheres during the preparation process, ensuring its purity; 2. High density: The weight of the alumina polycrystalline feedstock monomer is greater than 80 kg, with a density greater than 3.5 g/cm³; 3. The grown crystals have few bubbles and high quality, which can meet the requirements of various growth methods for sapphire raw materials.
1. Sapphire single crystal 2. LED substrate wafer 3. Smartphone cover glass 4. Glass coating
Key words:
5N high-purity alumina polycrystalline raw material
Product Parameters
| Project | Unit | Product Model |
| Al2O3 Content | % | >=99.999% |
| Phase | α | α-Al2O3 |
| Appearance | -- | White Columnar |
| Na | ppm | ≤2 |
| Fe | ppm | ≤2 |
| Ca | ppm | ≤1 |
| Si | ppm | ≤2 |
| Cu | ppm | ≤1 |
| Mg | ppm | ≤1 |
| Size (Diameter) | mm | 260/280 (Can be customized according to user crucible size requirements) |
| Loose Bulk Density | g/cm3 | / |
| Specific Surface Area | m2/g | / |
| Bulk Density | g/cm3 | >=3.5g/cm3 |
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