Spherical Aluminum Oxide Al2O3 Powder CAS 1344-28-1

What is Spherical Aluminum Oxide Al2O3 Powder ？

Spherical Aluminum Oxide has excellent mechanical properties and is often used as a grinding medium in various mills. Spherical Alumina has high compressive strength and wear resistance. Spherical al2o3 has a high filling property, and its particles have a high Spherical rate and wide particle size distribution. It can fill rubber and plastic with high density to obtain a mixture with low viscosity and good fluidity.

Secondly, the spherical oxidation furnace also has high thermal conductivity. Because it can be filled with high density, compared with crystalline silicon powder, a mixture with high thermal conductivity and good heat dissipation can be obtained.

Is aluminum oxide safe for the skin?
 

Although aluminum oxide is certainly abrasive, it is also a skin irritant with a questionable safety record. In any case, it is unquestionably unpleasant. Aluminum oxide crystals inflame and irritate the skin, leaving it red, whereas baking soda crystals naturally calm, tone, and soothe the skin.
 

Is aluminum oxide safe to breathe?
 

Aluminum oxides rank amongst the less toxic substances and only exhibit toxic effects in high concentrations. Inhalation of aluminum oxide dust should be avoided, but there is no evidence of significant harm to the lungs associated with the inhalation of aluminum oxide dust.

Spherical Aluminum Oxide also has low wear resistance. Because of its spherical appearance, the wear of the mixer, molding machine and mold and other equipment is greatly reduced, and the service life of the equipment can be extended.
 

aluminum oxide
 

TRUNNANO is a trusted global Spherical Aluminum Oxide Al2O3 Powder supplier. Feel free to send an inquiry about the latest Spherical Alumina price at any time if you want to buy alumina powder. 

Performance of Spherical Aluminum Oxide Al2O3 Powder：
 

1. High filling density: With its large particle diameter and broad particle size distribution, it realizes high-density filling for rubber and plastic and produces compounds with low viscosity and good fluidity.

2. High thermal conductivity: High filling density enables the production of compounds with higher thermal conductivity and heat dissipation rate than crystalline silica.

3. Low abrasivity: Due to its Spherical shape, less wearing of kneading machines, forming machines, and dies.

Specifications of Spherical Aluminum Oxide Al2O3 Powder:
 

Technical Parameter of Spherical Aluminum Oxide Al2O3 Powder：
 

 How is Spherical Aluminum Oxide Al2O3 Powder produced?
 

Chemical precipitation method: Chemical precipitation is common for preparing spherical alumina. The principle of the method is to add a precipitating agent to the solution containing aluminum ions so that aluminum ions precipitate out in the form of aluminum hydroxide or aluminum carbonate, and then through filtration, washing, drying, and other processes to obtain spherical aluminum oxide products. Among them, the precipitating agents are ammonia, sodium hydroxide, sodium carbonate, and salts containing other metal ions, such as magnesium chloride, zinc sulfate, etc. The particle size and morphology of spherical alumina can be adjusted by controlling the type and concentration of the precipitator.

Combustion method: The combustion method is another common method for preparing spherical alumina. The principle of this method is to mix aluminum powder with fuel and heat to high temperatures so that the aluminum powder burns and releases a lot of energy while the resulting alumina is spherical. The particle size and shape of spherical alumina can be adjusted by controlling the combustion temperature and atmosphere. High-temperature molten salt reaction or high-temperature molten salt extraction method is needed to obtain high-purity spherical alumina.

Physical vapor deposition method: Physical vapor deposition is a method for preparing high-performance spherical alumina. The principle of the method is to heat the aluminum source gas to a high temperature employing evaporation, sputtering, ion plating, etc. so that the aluminum atoms are vaporized in the reaction chamber and form high-purity alumina particles. The particle size and shape of spherical alumina can be adjusted by controlling the temperature and atmosphere of the reaction chamber. Multiple deposition and heat treatment processes are required to obtain high purity and density of spherical alumina.

Template method: The template method is a method for preparing the ordered spherical alumina. The principle of the method is to use surfactants or colloidal templates to confine aluminum ions in a certain region so that aluminum ions are in the region of hydrolysis and condensation reaction, forming spherical alumina particles. The particle size and morphology can be adjusted by controlling the template's type, concentration, and action time, and the orderly spherical alumina array can be prepared.

Applications of Spherical Aluminum Oxide Al2O3 Powder ：
 

Catalyst and support: Spherical alumina has the advantages of high specific surface area, high activity, and high stability and is widely used in preparing catalysts and their support. In the field of catalysts, spherical alumina can be used as a catalyst carrier to improve the catalyst's dispersion, stability, and activity, thereby improving the catalytic effect. For example, spherical alumina can be used as the carrier of automobile exhaust catalysts to improve the decomposition ability of the catalyst to harmful substances and reduce exhaust emissions.
 

Applications of Spherical Aluminum Oxide Al2O3 Powder

Battery material: Spherical alumina is widely used in preparing battery materials because of its high conductivity and lithium ion diffusion. In the field of battery materials, spherical alumina can be used as an electrode material for lithium-ion batteries to improve the electrochemical performance and life of the electrodes. For example, spherical alumina can be used as a positive electrode material for lithium-ion batteries, improving the battery's energy density and cycle life.

Ceramic material: Spherical alumina has the advantages of high melting point, hardness, high wear resistance, etc., and is widely used in the preparation of ceramic materials. In ceramic materials, spherical alumina may be utilized as a strengthening component of ceramic materials to enhance their mechanical and wear-resistant properties of products. For example, spherical alumina can be added to ceramic materials to improve ceramic tools' hardness, wear resistance, and service life.

Optical materials: Spherical alumina has the advantages of high light transmittance, high refractive index, and low scattering and is widely used to prepare optical materials. In optical materials, spherical alumina can be used as a raw material for optical lenses, prisms, and other products to improve the performance and stability of optical materials. For example, Spherical alumina can be utilized as a lens component for optical lenses to improve the image quality and transmittance of the lens.

Electronic Materials: Spherical alumina has good electrical conductivity and thermal stability and is widely used to prepare electronic materials. In electronic materials, spherical alumina can be used as a raw material for electronic components to improve the performance and stability of electronic equipment. For example, spherical alumina can be used as a resistor material for integrated circuits to improve the accuracy and stability of the resistor.
 

Applications of Spherical Aluminum Oxide Al2O3 Powder

Wear-resistant coating: Spherical alumina has the advantages of high hardness, high wear resistance, etc., and can be used as the raw material for wear-resistant coating. In the field of wear-resistant coating, Spherical alumina can be utilized to reinforce the coating to increase the strength as well as wear resistance of the coating. For example, spherical alumina can be added to the coating material to improve the coating tool's hardness, wear resistance, and service life.
 

Storage Condition of Spherical Aluminum Oxide Al2O3 Powder:

Spherical Aluminum Oxide Al2O3 Powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition, should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of Spherical Aluminum Oxide Al2O3 Powder:

It is packed in double plastic bags inside, which can be filled with argon in a vacuum; it can be vacuumed and filled with argon for protection.
Spherical Aluminum Oxide Al2O3 Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Spherical Aluminum Oxide Al2O3 Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.
 

Packing & Shipping of Spherical Aluminum Oxide Al2O3 Powder

Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
If you are looking for high-quality spherical Al2O3 powder, please feel free to contact us and send an inquiry. 
 

FAQs of Spherical Aluminum Oxide Al₂O₃ Powder

Q: What is spherical aluminum oxide used for?

A: Spherical Aluminum Oxide (Al₂O₃) powder serves a wide array of applications due to its unique properties. It is employed in the manufacturing of advanced ceramics, including substrates and components for electronics that require high thermal stability and mechanical strength. In the field of abrasives, it is utilized for precision grinding and polishing operations. Additionally, it finds use in the production of refractory materials, as fillers in composites, and in the development of coatings with superior wear resistance. Its biocompatibility allows for its application in medical devices and implants. Moreover, spherical aluminum oxide can be found in cosmetics and personal care products, contributing to formulations that enhance texture and provide a smooth application.

Q: Is aluminum oxide safe for human exposure?

A: Exposure to aluminum oxide should be managed carefully. While there are limited studies on the health effects of spherical aluminum oxide specifically, general knowledge about aluminum compounds indicates that they may cause irritation to the respiratory system if inhaled in significant quantities. Proper handling practices, such as wearing appropriate protective equipment, can mitigate potential risks. For most industrial uses, following occupational safety guidelines ensures a safe working environment. The form and particle size of aluminum oxide can influence its interaction with biological systems, so specific risk assessments are recommended for particular applications or environments.
 

Q: What is the formula of aluminum oxide?

A: Aluminum oxide has the chemical formula Al₂O₃. This compound consists of two aluminum atoms (Al) bonded with three oxygen atoms (O). It exists in several crystalline forms, with alpha-alumina being the most stable and common at room temperature. The spherical morphology of aluminum oxide powder is achieved through specialized manufacturing processes, which result in particles with a more uniform shape compared to irregularly shaped powders. This spherical form can offer advantages in flowability, packing density, and performance in various applications.
 

Q: Is aluminum oxide safe in skincare?

A: Spherical aluminum oxide is considered safe for use in cosmetic and skincare products when used according to established guidelines and good manufacturing practices. It contributes positively by providing a silky feel and enhancing the spreadability of products. Due to its non-reactive nature and low toxicity profile, it does not typically cause skin irritation or sensitization when properly incorporated into formulations. However, like all ingredients, it should be used within specified concentration limits to ensure safety and efficacy. Manufacturers must adhere to regulatory requirements and conduct thorough testing to guarantee the product's safety for consumer use.
 

Q: How does the spherical shape benefit the applications of aluminum oxide?

A: The spherical shape of aluminum oxide powder provides several benefits over conventional angular or irregularly shaped particles. Spherical particles tend to have improved flow characteristics, which can facilitate easier processing during manufacturing. They also exhibit reduced friction between particles, leading to lower wear on machinery and equipment. In end products, spherical particles can contribute to a smoother texture and better distribution, which is particularly advantageous in applications like cosmetics, where sensory attributes are important. Furthermore, the spherical form can improve the packing efficiency of the particles, potentially resulting in enhanced physical properties of the final product, such as increased hardness or wear resistance in coatings or ceramics.
 

Q: Are there environmental considerations regarding the use of aluminum oxide?

A: When considering the environmental impact of aluminum oxide, it's important to look at both its production and disposal. The manufacturing process of aluminum oxide from bauxite ore requires significant energy and can generate emissions, depending on the methods used. Efforts are continually made within the industry to reduce the environmental footprint of this process. Regarding disposal, aluminum oxide is generally inert and not considered hazardous waste. However, proper waste management practices should always be followed to minimize any potential impact on ecosystems. Recycling and reusing aluminum oxide-containing products can also contribute to more sustainable practices.