Pure White Sintered Tabular Alumina Granules 99.4% Low Porosity
High Purity White Tabular Alumina 99.4% For Shaped And Unshaped Refractories
1. Tabular Alumina Introduction
Tabular Alumina(TA) is a pure sintered a α-alumina materials that has been fully densified by rapid-sintering without the use of sintering aids at temperature in excess 1900℃. TA has characteristic large, well developed hexagonal tablet shaped α-alumina crystals of up to 200μm length. The excellent thermal volume stability and thermal shock characteristics can be attributed to its specific microstructure: low open porosity and large crystals with closed spherical pores, which are entrapped upon re-crystallization during rapid-sintering. TA has extremely high refractoriness, high mechanical strength and abrasion resistance, very good chemical purity, excellent dielectric properties and good resistance against acid and alkali corrosion. TA is the aggregate of choice in unshaped and shaped high performance refractory. It is used in a variety of industries such as steel, foundry, petrochemical, kiln furniture and as a catalyst support. Ground TA is an excellent product to use as filler in epoxy or resin systems where high dielectric strength, thermal conductivity or abrasion resistance is desired.
2. Tabular Alumina Specifications
| Shape | Chemical compositions | Physical characteristics | |||||
| AL2O3 | Na2O | SiO2 | Fe2O3 | Bulk Density | Apparent Porosity | Water Absorption | |
| ≥% | ≤% | ≤% | ≤% | ≥g/cm3 | % | % | |
| Balls | 99.4 | 0.40 | 0.10 | 0.03 | 3.55 | 5 | 1.5 |
| Grains | 99.3 | 0.40 | 0.10 | 0.03 | 3.55 | 5 | 1.5 |
| Powder | 99.0 | 0.40 | 0.12 | 0.03 | - | - | - |
3. Tabular Alumina General Advantages
a. White tabular alumina is widely used in high performance refractories in the fields of iron and steel;
b. High thermal stability, good toughness;
c. Stable chemical properties;
d. The corrosion resistance of alkaline slag, slag and hot metal is good
4. Tabular Alumina Characteristics
- High refractoriness.
- Physicochemical stability.
- Bulk density high.
- Low porosity.
- Low water absorption.
- Fully calcined
- High purity and whiteness.
5. Tabular Alumina Applications
1) Refractory materials, furnace charge, aggregate, castable, rammed miscellaneous materials, plastic, pressing materials, projection materials, spray paint, vibration materials, refractory mud
2) Wear-resisting coating, refractory coating, wear-resisting machinery,
3) Smelting, casting, steel mills, power plants
4) Ceramic deburring, surface treatment
5) Firebrick, fireproof ceramics
6. Tabular Alumina Particle sizes Available
Size of powder: -200mesh, -270mesh, -325mesh.
Size of particle: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-15mm, 0-5mm or as required.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.