White aluminum oxide is white with the main crystal phase alpha-Al2O3 ,was made from the high quality alumina by melting above 2200℃ in the electric arc furnace and cooling.
White aluminum oxide produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved.
| white alumina powder | |
| Al2O3 | ≥99.3% |
| SiO2 | ≤0.04 |
| NaO2 | ≤0.3 |
| Fe2O3 | ≤0.05 |
| K2O | ≤0.01 |
Typical physical properties | |
Hardness: | Mohs:9.0 |
Maximum service temperature: | 1900 ℃ |
Melting Point: | 2250 ℃ |
Specific Gravity: | 3.95g/cm3 |
Volume density | 3.6g/cm3 |
Bulk density(LPD): | 1.75-1.95 g/cm3 |
Color: | White |
Particle shape: | Angular |
white fused alumina size distribution:
ITEM | D0(um) | D3(um) | D50(um) | D94(um) |
#2000 | <19 | <17 | 6.7±0.6 | >4.0 |
#2500 | <16 | <14 | 5.5±0.5 | >3.0 |
#3000 | <13 | <11 | 4.0±0.5 | >2.0 |
#4000 | <11 | <8.0 | 3.0±0.4 | >1.8 |
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