White aluminum oxide was made from the high quality alumina by melting above 2200℃ in the electric arc furnace and cooling.
White aluminum oxide is white with the main crystal phase alpha-Al2O3.
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.
|
Physical Properties |
|
|
Hardness: micro |
21600-22600kg/mm3 |
|
Hardness: Mohs |
9.0 min |
|
Specific Gravity |
3.95-3.97g/cm3 |
|
Bulk Density |
1.65-2.05g/cm3 |
|
Particle Shape |
Blocky, Sharp |
|
Color |
white |
|
Chemical compositions |
|
|
Al2O3 |
99.40min |
|
SiO2 |
0.15max |
|
Na2O |
0.28max |
|
Fe2O3 |
0.06max |
|
CaO |
0.03max |