Bubble Alumina is produced in an electric arc furnace where high purity alumina is fused. It contains a high aluminum oxide content, and is spherical in shape (hollow inside). It is extremely hard, and it is friable.
TYPICAL CHEMICAL ANALYSIS
TYPICAL PHYSICAL PROPERTIES
Damage ratio < 10%
Grain shape Spherical
Bulk density (Dependent upon granular size) Approx. 0,5 - 1,0 g/m³
Cast refractory shapes
Insulation fill in (furnaces)
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