Elevate Your Industrial Processes With Premium Calcined Alumina

Elevate Your Industrial Processes With Premium Calcined Alumina

Calcined alumina is used as a refractory material in industrial applications requiring high strength, wear resistance and chemical resistance. Additionally, calcined alumina is employed in glass, enamel and tile production as well as ceramic electrical insulators.

Classified according to their calcination level, crystal size, soda content and heat treatment process to meet various application needs and excel as matrix fillers.

High-Temperature Resistance

Calcined alumina’s ability to withstand extreme heat makes it an invaluable material in refractory materials and structural ceramics, while it’s also used as a catalyst support in heterogeneous catalysis due to its high surface area, thermal stability and chemical inertness.

Insulating properties make alumina ceramics the ideal material for electronic devices and industrial equipment, including electronics that contain electromagnetic voltage. When exposed to electromagnetic voltage, alumina ceramics exhibit low dielectric loss – meaning electrons don’t escape through its surface!

Bauxite is heated into calcined alumina, an advanced form of aluminum oxide with superior properties. During this process, water from surface alumina trihydrate is removed through various heating and cooling stages until all remaining moisture has been evaporated into fine white powder form. Almatis offers robust sintered alumina products to meet the diverse demands of various industries; ours are classified based on soda content, particle size and calcination level to meet each application need perfectly.

Abrasion Resistance

Our abrasive granules can be used for grinding, blasting, lapping and polishing operations. Their resilience enables them to withstand extremely high abrasion loads at elevated temperatures as well as impacts loads – making them perfect for use with glass beads or ceramicware applications.

At Advanced Alumina Products we use cutting-edge process control equipment to produce premium calcined alumina that features controlled soda chemistry, surface areas and particle size distributions to meet any application. This allows us to offer tailored abrasion resistance solutions specifically tailored for industrial uses.

Activated Alumina (AA), a dry granular chemical compound made of aluminum hydroxide by de-hydroxylating it, has a surface area of up to 200m2/gram due to its tunnel-like pores. Activated Alumina resists corrosion with extreme hardness (9 on Mohs scale, higher than diamond), high density, good thermal conductivity and good dimensional stability across a broad temperature range; its use includes refractory materials, catalyst supports, filtering fluoride arsenic and selenium from drinking water supplies.

Chemical Resistance

Calcined alumina is chemically inert, meaning that it does not react with numerous chemical compounds. Due to this chemical resistance, it can withstand harsh industrial processes, including ceramic manufacturing and metallurgy processes. Furthermore, calcined alumina can also serve as a catalyst support material that improves chemical reaction efficiency.

Different grades of calcined alumina offer unique properties that make them suitable for particular applications. For instance, 96% alumina boasts high mechanical strength and low thermal expansion while retaining electrical and dimensional stability across a broad temperature range – ideal characteristics for applications such as pressure sensors, bearing coatings and X-ray components.

When selecting a calcined alumina product for your business, be sure it contains an appropriate alumina content and particle size distribution to meet the unique demands of your application. Furthermore, look for products with quality assurance certifications to verify they meet industry standards – this can save money in maintenance repairs over time.

Thermal Conductivity

Calcined alumina is an aluminum oxide produced through heating at high temperatures to drive off any water molecules, leaving behind an extremely pure form with low porosity and permeability, an extreme hardness (9 on Mohs scale, which surpasses that of diamond), high density, and excellent electrical resistance at elevated temperatures. Granular alumina such as this is an integral component in refractory industries where cements, bricks, monolithic products and insulation materials require it as ingredients.

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