High Purity Alumina Grinding Beads
High Purity Alumina Grinding Beads/99%、99.9%、99.99%. They have high hardness, good corrosion resistance, and good normalization,etc. They are suitable high-efficiency grinding media for glaze,electric materials,batteries, chemical powder and fine mineral powders etc.
Product Details
Chemical Information
| Density: 3.9 | Bulk Density: 2.5 |
| Hardness(Hv): 1100 | Sphericity(%):98% |
| Size(mm):φ0.1mm, φ0.2mm, φ0.3mm, φ0.4mm, φ0.5mm~φ30mm | |
| Element | Na | K | Si | Fe | Mg | Ca | Cr |
| Content (ppm) | 8 | 4 | 10 | 8 | 3 | 3 | 2 |
(U:4ppb or less,Th:5ppb or less)Analysis by ICP
Features
Its abrasion resistance is better than the zirconia beads;
The alumina beads has a high purity of 99.99% or more. During grinding, there is no contamination except alumina;
It has excellent corrosion resistance to the acid and the alkali, and in the warm water, performance deterioration will not appear;
The density of high purity alumina beads is around 70% of the zicronia beads, and the filling weight needed in the mill is also 70%.In addition, the consumption and energy can be less in grinding.
Applications
Rare earth phosphor material;
Piezoelectric,Dielectric, MLCC and other electronic materials;
Electrode material of Lithium battery and other battery application;
Sapphire, electronic ceramics ,transparent ceramic materials;
Ink, pigment, paint and other materials;
High purity quartz sand, quartz crucible raw material grinding;
Pesticide, medicine, antibacterial materials;
