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AC3490 Bubble Alumina

Catalog No. AC3490
Material Al2O3
Purity 98.8%
Size 0.1-5mm

 

Bubble Alumina Description

Bubble AluminaBubble Alumina is produced by atomizing melted high-purity alumina. The atomized particles form hollow spheres. Bubble Alumina, by nature of its structure, has very low thermal conductivity and low bulk density. While Bubble Alumina exhibits a bulk density twice that of a premium-grade alumina fiber insulator. Bubble Alumina’s structure consists primarily of closed air-filled thin-walled cells that combine to give it exceptional hot strength low thermal conductivity. This makes Bubble Alumina an effective high-temperature thermal insulator in structural applications where insulating capabilities cannot be sacrificed and appropriate for use at temperatures as high as 1825°C. It is pre-fired, contains no organics, and exhibits high microwave and RF transparency. Its high alumina content makes it compatible with many extreme chemical environments.

Bubble Alumina Specifications

Sizes:

Sizing Bulk Density Sizing Bulk Density
0-0.2mm 1000-1450 0-3mm 650-950
0-0.5mm 800-1100 0-5mm 600-900
0.5-1mm 650-850 1-2mm 550-800
0-1mm 700-1050 1-3mm 550-800
1-1.5mm 550-800 2-3mm 500-750
0-2mm 650-1000 2-5mm 500-750
1.5-2mm 550-800 3-5mm 450-700

Chemical Composition:

Chemical Composition (wt%)
Al2O3 SiO2 MgO Na2O Fe2O3 CaO
98.8 0.8 0.05 0.1 0.03 0.3

Properties:

-High Hardness

-Abrasion / Wear-Resistance

-Chemical Inertness

-Superior Insulating Properties

-Resistance to Thermal Shock

-Dielectric Properties

-High Melting Point

Bubble Alumina Applications

-Filtration

-High-Porosity Application

-Coatings

Bubble Alumina Packaging

Our Bubble Alumina is carefully handled during storage and transportation to preserve the quality of our product in its original condition.

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