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High Purity Alumina Polycrystal RB-L-4
The high-purity aluminum oxide powder is white powder with uniform particle size, easy dispersion, stable chemical properties, moderate high-temperature shrinkage property and good sintering performance; High conversion and low sodium content.
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DETAIL
| Model | RB-L-1 | RB-L-2 | RB-L-3 | RB-L-4 | ||
| Apperance | white powder | white block | white ball | white polycrystal | ||
| Element | Unit | Typical Valve | ||||
| Purity | Al2O3 | % | ≥99.999 | ≥99.999 | ≥99.999 | ≥99.999 |
| Si | ppm | ≤5 | ≤5 | ≤5 | ≤5 | |
| Fe | ppm | ≤1 | ≤1 | ≤1 | ≤1 | |
| Na | ppm | ≤2 | ≤2 | ≤2 | ≤2 | |
| Mg | ppm | ≤0.5 | ≤1 | ≤1 | ≤0.5 | |
| Ca | ppm | ≤1 | ≤1 | ≤1 | ≤1 | |
| Cu | ppm | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 | |
| Ti | ppm | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 | |
| Cr | ppm | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 | |
| BET | m2/g | 5.0~8.0 | / | / | / | |
| Moisture | % | ≤0.1 | / | / | / | |
| LOI | % | ≤0.1 | / | / | / | |
| D50 | μm | 20~30 | / | / | / | |
| Apparent Density | g/cm3 | 0.3~0.8 | / | / | / | |
| Bulk density | g/cm3 | 0.5~0.8 | / | ＞2.0 | / | |
| Sintered Density | g/cm3 | / | ≥3.2 | ≥3.7 | / | |
| Size | mm | / | ∮50±3、∮60±2 | 1~3 | ≤10 | |
| Remark | Can be customized as required. | |||||
High purity alumina
Chemical properties
White powder
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