China High Purity Factory Price Alpha Alumina Powder Al2O3 Aluminum Oxide for Tri-Phosphor Fluorescent Powder, Find details about China Calcined Alumina, 4n Aluminum Oxide Powder from High Purity Factory Price Alpha Alumina Powder Al2O3 Aluminum Oxide for Tri-Phosphor Fluorescent Powder
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 |