China High Purity Factory Price Alpha Alumina Powder Al2O3 Aluminum Oxide, Find details about China Calcined Alumina, 4n Aluminum Oxide Powder from High Purity Factory Price Alpha Alumina Powder Al2O3 Aluminum Oxide
1.Luminescent materials: rare earth trichromatic phosphors used as the main raw material long afterglow phosphor, PDP phosphor, LED phosphor;
2.Transparent ceramics: used as fluorescent tubes for high pressure sodium lamp, electrically programmable read-only memory window;
3.Single Crystal: for the manufacture of ruby, sapphire, yttrium aluminum garnet;
4.High strength high alumina ceramic:as the substrate used in the manufacture of integrated circuits, cutting tools and high purity crucible;
Specification | Unit | Acceptable Value |
Appearance | White powder | White powder |
AL2O3 | % | ≥99.99 |
Na | ppm | ≤30 |
Fe | ppm | ≤8 |
Si | ppm | ≤30 |
Cu | ppm | ≤5 |
Mg | ppm | ≤5 |
Ca | ppm | ≤5 |
D50 | ppm | 0.6-40 |
Moisture | % | ≤0.1 |
Specific Surface | m²/g | 2-10 |
Apparent Density | g/cm³ | 0.3-0.5 |
Application | Sapphire crystal, laser crystal, phosphor |