Aluminum Oxide Micron Powder ( Al2O3, 99.5+%, 355-500 µm )

Technical Specification of Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 355 – 500 µm):

1. Product Name: Aluminum Oxide Micron Powder
2. Chemical Formula: Al₂O₃
3. Purity: 99.5% minimum
4. Particle Size: 355 – 500 µm
5. Appearance: White, fine powder
6. Specific Surface Area: Varies depending on particle size 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+%, 355 – 500 µm):

1. Abrasives:
   • Aluminum oxide powder in the 355 – 500 µm size range is used for coarse abrasive applications where substantial material removal is required. It is commonly found in heavy-duty grinding wheels, sandpapers, and abrasive discs used for rough grinding, deburring, and surface preparation of materials such as metals, ceramics, and stones. This size range is ideal for large-scale industrial applications that require aggressive abrasiveness.
2. Refractory Materials:
   • Due to its high melting point and excellent thermal stability, aluminum oxide is commonly used in refractory materials. This particle size is particularly suitable for creating linings, insulation, and heat-resistant components in high-temperature environments, such as in furnaces, kilns, and reactors used in industries like steel production, glass manufacturing, and cement.
3. Ceramic Production:
   • Aluminum oxide powder in this size range is employed in producing advanced industrial ceramics. It provides excellent mechanical strength, wear resistance, and thermal stability, making it ideal for creating durable ceramic components. These components are commonly used in aerospace, automotive, and electronics applications, where durability under harsh conditions is required.
4. Polishing and Surface Refining:
   • The 355 – 500 µm aluminum oxide powder is typically used for rough polishing and coarse surface refinement. It is used to remove larger imperfections and prepare surfaces for further finishing or finer polishing. This is commonly applied in industrial grinding and polishing of metals, glass, ceramics, and stone, as well as in large-scale material treatment.
5. Electronics and Electrical Insulation:
   • Aluminum oxide is widely used in the electronics industry for manufacturing electrical insulators, semiconductor substrates, and capacitors. The 355 – 500 µm particle size range is well-suited for use in applications requiring high electrical resistance and heat management. It is essential for stabilizing components in electronic devices that require insulation and thermal dissipation.
6. Catalyst Supports:
   • Aluminum oxide powder is often used as a catalyst support in various chemical processes, such as petroleum refining, hydrogenation, and ammonia production. This particle size range is particularly effective in applications where a high surface area and material stability are required to optimize catalytic reactions and ensure the process’s efficiency.
7. Water Filtration:
   • Due to its adsorptive properties, aluminum oxide powder is used in water filtration applications to remove impurities and contaminants from water. This size range is suitable for use in both industrial and municipal water treatment systems, where the powder helps remove particulates and other harmful substances from water.
8. Thermal Insulation:
   • Aluminum oxide is highly effective as a thermal insulator due to its excellent heat resistance and high thermal conductivity. The 355 – 500 µm particle size range is particularly useful for creating thermal insulation materials, heat shields, and furnace linings in industries that require high-performance insulation, such as in metallurgy, aerospace, and chemical processing.
9. Battery and Energy Storage:
   • In energy storage applications, especially lithium-ion and sodium-ion batteries, aluminum oxide is used as an insulating and stabilizing material in electrodes and separators. This particle size range helps improve the performance and safety of batteries by ensuring thermal stability and preventing overheating, extending the life and efficiency of the energy storage systems.
10. Cutting Tools and Wear-Resistant Coatings:
    • Aluminum oxide’s hardness makes it an ideal material for producing cutting tools, drill bits, and wear-resistant coatings. The 355 – 500 µm particle size range is often used in manufacturing industrial tools for machining hard materials like metals, ceramics, and composites. It is especially effective in creating tools that require high durability and resistance to abrasion.

The 355 – 500 µm particle size range is suitable for applications requiring substantial material removal, rough grinding, and heavy-duty surface treatment. Aluminum oxide powder in this size range is used across a wide variety of industries, including abrasives, refractories, ceramics, electronics, and energy storage, thanks to its hardness, thermal stability, and ability to withstand harsh conditions. Its versatility makes it a critical component in industrial processes that demand high durability and performance.