white aluminum oxide as Glaze

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 and Chemical Composition

Physical Properties
Hardness: micro21600-22600kg/mm3
Hardness: Mohs9.0 min
Specific Gravity3.95-3.97g/cm3
Bulk Density1.65-2.05g/cm3
Particle ShapeBlocky, Sharp
Colorwhite
Chemical compositions
Al2O399.40min
SiO20.15max
Na2O0.28max
Fe2O30.06max
CaO0.03max

Typical Size

 

MICROGRITS
Grit designationMean grain size ds50-value in μm
F 23053.0 ± 3
F 24044.5 ± 2
F 28036.5 ± 1.5
F 32029.2 ± 1.5
F 36022.8 ± 1.5
F 40017.3 ± 1
F 50012.8 ± 1
F 6009.3 ± 1
F 8006.5 ± 1
F 10004.5 ± 0.8
F 12003.0 ± 0.5
F 15002.0 ± 0.4
F 20001.2 ± 0.3
F 30000.8±0.2

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