5N high-purity alumina disc
- Commodity name： 5N high-purity alumina disc
- =Main purpose： 1. Sapphire single crystal 2. LED substrate wafer 3. Missile nose cone 4. Smartphone cover glass
- =Product overview： High-purity alumina discs have advantages such as high purity and high density, and can be used in methods like the floating zone method, the guided film method, the temperature gradient method, and the pulling method to prepare high-quality large-sized sapphire crystals.
1. Sapphire single crystal 2. LED substrate wafer 3. Missile nose cone 4. Smartphone cover glass
Key words:
5N high-purity alumina disc
Product Parameters
| Project | Unit | Product Model |
| Al2O3 Content | % | >=99.999% |
| Phase | α | α-Al2O3 |
| Appearance | -- | White disc |
| Na | ppm | ≤2 |
| Fe | ppm | ≤2 |
| Ca | ppm | ≤1 |
| Si | ppm | ≤2 |
| Cu | ppm | ≤1 |
| Mg | ppm | ≤1 |
| Size | mm | 48±2mm |
| Loose Bulk Density | g/cm3 | / |
| Specific Surface Area | m2/g | / |
| Sintered Density | g/cm3 | >=3.2g/cm3 |
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