Aluminum Oxide Micron Powder ( Al2O3, 99.5+%, 250-355 µm )

Technical Specification of Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 250 – 355 µm):

1. Product Name: Aluminum Oxide Micron Powder
2. Chemical Formula: Al₂O₃
3. Purity: 99.5% minimum
4. Particle Size: 250 – 355 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+%, 250 – 355 µm):

1. Abrasives:
   • Aluminum oxide powder in the 250 – 355 µm particle size range is ideal for coarse abrasive applications. It is commonly used in rough grinding, sanding, and material removal tasks. This size range is suitable for use in heavy-duty grinding wheels, sandpapers, and abrasive discs, especially in industries where substantial material removal is required, such as metalworking, ceramics, and stone polishing.
2. Refractory Materials:
   • The high melting point and exceptional thermal stability of aluminum oxide make it ideal for use in refractory applications. This particle size is particularly useful for creating linings and materials for furnaces, kilns, and reactors in industries that require resistance to high temperatures, including steel production, glass manufacturing, and cement industries.
3. Ceramic Production:
   • Aluminum oxide powder in this size range is used in the production of industrial ceramics. These ceramics are employed in various high-performance applications, such as automotive, aerospace, and electronics. The powder offers exceptional mechanical strength, wear resistance, and thermal stability, making it ideal for producing durable ceramic components and parts.
4. Polishing and Surface Refining:
   • The 250 – 355 µm aluminum oxide powder is used for coarse polishing and surface refinement, especially in applications that require significant material removal. It is commonly used in grinding and polishing metals, stones, and ceramics, particularly in industries where large surfaces need to be smoothed or polished.
5. Electronics and Electrical Insulation:
   • Aluminum oxide in this particle size range is often used in the electronics industry to manufacture electrical insulators, semiconductor substrates, capacitors, and other electronic components. Its high dielectric strength and thermal conductivity make it suitable for stabilizing and insulating high-performance electronic devices.
6. Catalyst Supports:
   • Aluminum oxide powder serves as a catalyst support material in chemical processes such as petroleum refining, hydrogenation, and ammonia production. This size range is effective for applications where high surface area and stability are necessary to enhance the efficiency of catalytic reactions.
7. Water Filtration:
   • Aluminum oxide is used in filtration systems for water purification due to its ability to adsorb and trap impurities. The 250 – 355 µm particle size is ideal for industrial and environmental water treatment applications, where the powder helps remove contaminants and particulates from water, making it suitable for municipal water treatment plants and industrial waste management.
8. Thermal Insulation:
   • Due to its excellent thermal conductivity and high melting point, aluminum oxide powder is used in creating thermal insulation materials. It is applied in high-temperature environments like furnaces, reactors, and heat shields, ensuring effective thermal management in industries such as metallurgy, ceramics, and aerospace.
9. Battery and Energy Storage:
   • In energy storage applications, particularly in lithium-ion and sodium-ion batteries, aluminum oxide is used as a stabilizing or insulating material in electrodes and separators. This powder helps improve battery safety, performance, and longevity by providing thermal stability and preventing overheating.
10. Cutting Tools and Wear-Resistant Coatings:
    • Aluminum oxide’s hardness and wear resistance make it an ideal material for manufacturing cutting tools, drill bits, and wear-resistant coatings. The 250 – 355 µm size range is well-suited for use in industries that require robust tools for machining hard materials such as metals, ceramics, and composites.

The 250 – 355 µm particle size range of aluminum oxide micron powder is perfect for applications that demand substantial material removal, rough grinding, and heavy-duty surface preparation. It is widely used in industries that require durability, wear resistance, and thermal stability, making it an essential component in the production of abrasives, refractories, ceramics, electronics, and more. Its ability to withstand high temperatures and mechanical stress ensures its continued importance in a variety of industrial processes.