Aluminum Oxide Micron Powder ( Al2O3, 99.5+%, 212-300 µm )

Technical Specification of Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 212 – 300 µm):

1. Product Name: Aluminum Oxide Micron Powder
2. Chemical Formula: Al₂O₃
3. Purity: 99.5% minimum
4. Particle Size: 212 – 300 µm
5. Appearance: White, fine powder
6. Specific Surface Area: Varies depending on particle size distribution and manufacturing process
7. Density: Approximately 3.95 g/cm³
8. Melting Point: 2,072°C (3,762°F)
9. Boiling Point: Sublimation point around 2,977°C (5,391°F)
10. Refractive Index: 1.765 (at 589 nm)
11. Mohs Hardness: 9 (second hardest material after diamond)
12. Electrical Conductivity: Insulating material (high resistivity)
13. Thermal Conductivity: 30 W/(m·K)
14. pH (in water): Neutral (around pH 7)
15. Packaging: Typically packed in sealed, moisture-resistant bags or drums to prevent contamination and moisture absorption.

Applications of Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 212 – 300 µm):

1. Abrasives:
   • Aluminum oxide powder in the 212 – 300 µm particle size range is mainly used in heavy-duty abrasive applications. It is ideal for aggressive material removal, rough grinding, and coarse polishing of hard materials like metals, ceramics, and stone. It is often found in products such as large grinding wheels, abrasive discs, and sandpapers used in industrial applications requiring substantial surface preparation.
2. Refractory Materials:
   • Aluminum oxide’s high melting point and excellent thermal stability make it ideal for use in refractory materials. The 212 – 300 µm size range is particularly effective for creating linings for furnaces, kilns, and reactors in high-temperature environments. It is commonly used in industries like steel production, cement manufacturing, and glass production, where resistance to extreme temperatures is required.
3. Ceramic Production:
   • This size of aluminum oxide is used in the production of industrial ceramics. It provides excellent wear resistance, mechanical strength, and thermal stability, making it suitable for creating components in automotive, aerospace, and other precision engineering applications. It is especially beneficial in producing advanced technical ceramics where durability and resistance to wear are crucial.
4. Polishing and Surface Refining:
   • The 212 – 300 µm particle size range is used for coarse polishing and surface preparation, typically in heavy-duty applications where significant material is removed. It is used for removing imperfections and smoothing rough surfaces on metals, ceramics, and even large-scale stone surfaces. It is also employed in the polishing of hard materials in both industrial and artistic settings, such as the polishing of marble or granite.
5. Electronics and Electrical Insulation:
   • Aluminum oxide powder is used for electrical insulation and components in the electronics industry. This size range is often used in applications requiring insulation in high-voltage systems, substrates for semiconductors, and capacitors. It helps manage heat dissipation and electrical insulation in sensitive electronic devices.
6. Catalyst Supports:
   • Aluminum oxide serves as a catalyst support in various chemical reactions. This particle size range is well-suited for catalytic applications in industries such as petroleum refining, hydrogenation, and ammonia production. Its high surface area and chemical stability make it an excellent material for supporting catalysts, enhancing reaction efficiency and thermal stability.
7. Water Filtration:
   • Aluminum oxide is used in filtration systems for water treatment, as it can adsorb and trap impurities from water. This size range is suitable for industrial water filtration applications, including removing contaminants and particulates from water, making it ideal for use in municipal water treatment, industrial waste treatment, and environmental cleanups.
8. Thermal Insulation:
   • Due to its high thermal conductivity and resistance to heat, aluminum oxide powder is used for thermal insulation applications. It is applied in high-temperature environments like furnaces, kilns, and reactors, as well as in heat shields, where it helps maintain temperature control and prevent heat loss or damage.
9. Battery and Energy Storage:
   • Aluminum oxide is used in the energy storage industry, particularly in lithium-ion and sodium-ion batteries, where it acts as a stabilizing material or protective coating for electrodes. Its insulating properties and ability to withstand high temperatures make it valuable in improving battery performance, stability, and safety.
10. Cutting Tools and Wear-Resistant Coatings:
    • Aluminum oxide’s hardness and abrasion resistance make it ideal for manufacturing cutting tools, wear-resistant coatings, and abrasives for industrial applications. The 212 – 300 µm particle size range is particularly effective for use in tools designed for heavy machining of hard materials like metals and ceramics, ensuring longer tool life and more efficient material removal.

The 212 – 300 µm particle size range is highly suitable for coarse abrasive applications, aggressive material removal, and applications that require high durability and wear resistance. Aluminum oxide powder in this size range offers excellent performance in industries that demand strength, heat resistance, and mechanical properties, making it indispensable in a wide range of industrial processes.