Fumed Alumina Fumed Aluminum Oxide Al2O3 Powder

Description of Fumed Aluminum Oxide：

Fumed alumina is an amorphous or partially crystalline aluminum oxide solid with the molecular formula Al2O3. It has the following properties:

High melting point: The melting point of fumed alumina is as high as 2050 ° C. It has good chemical stability as well as thermal stability when temperatures are high.

High hardness: Fumed alumina is one of the hardest materials known, with excellent wear and corrosion resistance.

High insulation: Fumed alumina is an excellent insulating material that does not conduct electricity at room temperature.

High chemical stability: fumed alumina has excellent chemical stability, does not react with acids and bases at room temperature, but may react with some compounds to produce harmful substances at high temperatures.

High purity: The purity of fumed alumina is very high, containing a very small amount of impurity elements, such as silicon, iron, and so on.

High light transmittance: fumed alumina has high light transmittance and can be used to manufacture optical components and window materials.

Diversified preparation methods: fumed alumina is prepared through a variety of ways: chemical deposition by vapor, combustion synthesis, sol-gel method, etc.

Environmentally friendly: fumed alumina in the production process does not produce harmful substances and is an environmentally friendly material.

Technical Parameters of Fumed Allumina Fumed Aluminum Oxide

Application of Fumed Aluminum Oxide：

Electronics and semiconductor industries

Fumed alumina is an excellent semiconductor material that is widely used in the manufacture of electronic devices and integrated circuits. Due to its high light transmittance, fumed alumina is also used in the manufacture of solar cells. In addition, fumed alumina can also be used as an electronic packaging material to improve the reliability and stability of electronic devices.

Ceramics and glass industry

Fumed alumina can be used as a high-purity raw material and additive for the preparation of ceramics and glass. It can enhance the appearance and performance of glass and ceramic products, such as increasing light transmission, increasing hardness, and so on. In addition, fumed alumina can also be used as a raw material for porcelain glazes and refractories.

Metallurgical industry

In the metallurgical industry, fumed alumina is used to extract aluminum and manufacture aluminum alloys. It can also be used as a flux and deoxidizer for steel and non-ferrous metal smelting.

Chemical industry

In the chemical industry, fumed alumina is used to produce compounds such as aluminum sulfate and aluminum chloride. In addition, fumed alumina can also be used as a catalyst and carrier in many chemical reactions.

Abrasive materials and wear-resistant coatings

Because of its high hardness and high chemical stability, fumed alumina is widely used in abrasive materials and wear-resistant coatings. It can be used as an abrasive and polishing agent for grinding and polishing various materials, such as glass, gems, metals, and so on. In addition, the vapor phase alumina can also be used as a wear-resistant coating material, coated on a variety of substrate surfaces, such as metal, glass, ceramics, etc., to improve its wear resistance and life.

Optical component manufacturing

Because of its high light transmittance and high refractive index, fumed alumina is widely used in the field of optical component manufacturing. It can be used to manufacture high-quality optical components such as prisms, window materials, mirrors, etc. In addition, fumed alumina can also be used as a laser crystal material for the manufacture of high-precision and high-stability lasers.

Catalyst field

Fumed alumina can be used as a catalyst in many chemical reactions, such as alkylation reaction, oxidation reaction, dehydrogenation reaction, etc. In the field of petrochemical and organic synthesis, fumed alumina catalysts are widely used in various chemical reactions. In addition, fumed alumina can also be used as electrode materials for fuel cells and energy storage materials.

Production Method of Fumed Aluminum Oxide：

Chemical vapor deposition

The method is to react aluminum or aluminum chloride with oxygen at high temperatures to produce aluminum oxide, which is cooled and crushed to obtain fumed alumina. Deposition of chemicals typically calls for the usage of equipment that is specially designed for it, such as reactors, vacuum pumps, etc. The advantages of this method are controllable preparation conditions high product quality, but high production cost.

Combustion synthesis

Combustion synthesis is a new method to synthesize gas phase alumina. This method is the reaction of aluminum powder and oxygen at high temperatures to produce aluminum oxide. The combustion synthesis method has the advantages of simple equipment, convenient operation, and easy mass production, but the product purity and particle size may not be ideal.

Sol-gel method

Sol-gel method is to form aluminum oxide sol or gel by mixing aluminum salt and oxidizer in aqueous solution, and then through hydrolysis, condensation, and other reactions. After drying and heat treatment, fumed alumina can be obtained. The advantage of the sol-gel method is that products with different particle sizes and morphology can be obtained by controlling the reaction conditions. Still, the production cost is high, and the product quality is also affected by the preparation conditions.

Other preparation methods

In addition to the above three methods, there are some other methods for the preparation of fumed alumina, such as the supercritical fluid method, electrochemical method, microemulsion method, and so on. These methods have their characteristics, and suitable methods can be selected for preparation according to the different requirements of the product.

Prospect Market of Fumed Aluminum Oxide：

Fumed Alumina is a kind of inorganic compound with high melting point, high hardness, high insulation, and high chemical stability, which is widely used in electronics, ceramics, glass, metallurgy, chemical industry, and other fields. With the constantly evolving technological advances of science and technologies and the continual expansion of applications, the market prospect of fumed Alumina will be broader.

In the electronics and semiconductor industries, fumed Alumina is widely utilized in the manufacturing of electronic devices as well as integrated circuits. Due to its high light transmission and high insulation, fumed Alumina can also be used to make solar cells and electronic packaging materials. In light of the rapid expansion of the electronics industry, market demand for fumed Alumina will also continue to rise.

In the ceramic and glass industry, fumed Alumina can be used as a high-purity raw material and additive for the preparation of ceramics and glass. It can enhance the appearance and performance of glass and ceramic products, such as increasing light transmission, increasing hardness, and so on. With the continuous development of the ceramic and glass industry, the market demand for fumed Alumina will also continue to increase.

In the metallurgical industry, fumed Alumina is used to extract aluminum and manufacture aluminum alloys. With the continuous development of the metallurgical industry, the market demand for fumed Alumina will also continue to increase.

In the chemical industry, fumed Alumina is used to produce compounds such as aluminum sulfate and aluminum chloride. In addition, fumed Alumina can also be used as a catalyst and carrier in many chemical reactions. With the continuous development of the chemical industry, the market demand for fumed Alumina will continue to increase.

In the field of abrasive materials and wear-resistant coatings, vapor phase alumina can be used as an abrasive and polishing agent for grinding and polishing various materials. It can also be used as a wear-resistant coating material to coat various substrate surfaces to improve their wear resistance and life. With the continuous development of abrasive materials and wear-resistant coatings, the market demand for fumed Alumina will also continue to increase.

Shipping and Packing of Fumed Allumina Fumed Aluminum Oxide

You can choose from many kinds of packing.  Fumed Alumina  quantity.
Fumed Alumina Fumed Aluminum Oxide packing: 10kg/bag.
Fumed Alumina Fumed Aluminum Oxide  shipping: The payment receipt will be used to send the order by mail, air or express.

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