Tabular alumina is 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℃ 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.

Characteristic:

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. 8. High volume stability 9. High anti-bending strength