White Tabular Alumina is high-density, fully shrunk, coarse crystalline alpha alumina that has been converted to the corundum form. It is a completely recrystallized α-alumina sintered at slightly below the melting point of imported alumina after batching, grinding and molding.
Tabular Alumina is produced by sintering ball-formed alumina at a temperature under the 2040°C fusion point of aluminum oxide. The crystals are arranged in a tabular staggered way, which increases the mechanical strength of the particles. Tabular alumina has characteristic large, well developed hexagonal tablet shaped α-alumina crystals of up to 200μm length.
1. Complete crystallization, High purity up to 99.5% Al2O3
2. Good resistance to alkalis and mineral acids
3. Low water absorption less than 1%
4. High hardness and toughness
5. High thermal conductivity
6. Excellent thermal shock resistance
7. Good abrasion resistance.
▼Tabular Alumina Chemical & Physical Analysis (Typical Value)
●Chemical Composition (%)
Al2O3 by difference Typical >=99.3
Ca O <=0.10
Bulk Specific Gravity (g/cm3) >=3.5
Apparent Porosity (%) <=5.0
Water Absorption (%) <=1.5
Service Temperature (℃) 1960
All data based upon Runlong Enterprise standard test methods.
▼Available Grit Size: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 0.5-1mm, 0-0.3mm, 0.3-0.6mm
Fine Powder: -100 mesh, -180 mesh, -220 mesh, -325 mesh
Other special specifications could be supplied as required.
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Other package also could be supplied as required.Tabular Alumina