Aluminum Oxide Micron Powder ( Al2O3, 99.5+%, 300-425 µm )

Technical Specification of Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 300 – 425 µm):

1. Product Name: Aluminum Oxide Micron Powder
2. Chemical Formula: Al₂O₃
3. Purity: 99.5% minimum
4. Particle Size: 300 – 425 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+%, 300 – 425 µm):

1. Abrasives:
   • Aluminum oxide powder in the 300 – 425 µm size range is suitable for very coarse abrasive applications. It is commonly used for heavy-duty grinding, surface preparation, and aggressive material removal in applications like rough grinding, sandblasting, and deburring. This size range is ideal for use in large grinding wheels, abrasive discs, and sandpapers designed for tough, industrial applications, especially in metalworking, ceramics, and stone processing.
2. Refractory Materials:
   • Aluminum oxide’s high melting point and thermal stability make it an ideal material for refractory applications. The 300 – 425 µm particle size is particularly effective for use in refractory linings, insulation materials, and heat-resistant components in furnaces, kilns, and reactors. It is widely used in industries such as steel manufacturing, glass production, cement, and ceramics, where materials need to withstand extreme temperatures and high-pressure environments.
3. Ceramic Production:
   • Aluminum oxide powder in this size range is employed in the production of advanced ceramics, offering superior wear resistance, mechanical strength, and thermal stability. It is commonly used for creating durable ceramic components for applications in aerospace, automotive, and electronics, where high performance and durability are required.
4. Polishing and Surface Refining:
   • The 300 – 425 µm particle size is commonly used for coarse polishing and rough surface refinement. It is employed in industrial polishing, grinding, and finishing applications where significant material removal is needed. This includes polishing metals, ceramics, glass, and other hard materials, as well as refining rough stone surfaces.
5. Electronics and Electrical Insulation:
   • Aluminum oxide is widely used in the electronics industry for electrical insulators, semiconductor substrates, and capacitors. The 300 – 425 µm size range is suitable for manufacturing insulating components that require high dielectric strength, thermal conductivity, and resistance to high voltage, making it ideal for stabilizing sensitive electronic components and devices.
6. Catalyst Supports:
   • Aluminum oxide is an excellent material for use as a catalyst support in various chemical processes. Its high surface area and stability under extreme conditions make it ideal for applications in petroleum refining, hydrogenation, and ammonia production. The larger particle size allows for better handling in some industrial catalytic applications where volume and stability are critical.
7. Water Filtration:
   • This size range of aluminum oxide powder is effective in water filtration and purification applications. Its adsorptive properties make it suitable for removing particulates and impurities from water in industrial, municipal, and environmental applications, enhancing the filtration process and helping to produce cleaner water.
8. Thermal Insulation:
   • Aluminum oxide powder is used in the production of high-performance thermal insulation materials. The 300 – 425 µm particle size is especially beneficial for insulating materials used in industries that require thermal protection at high temperatures, such as in furnace linings, heat shields, and other thermal barrier applications in metallurgy, aerospace, and high-temperature reactors.
9. Battery and Energy Storage:
   • In the energy storage sector, particularly in lithium-ion and sodium-ion batteries, aluminum oxide is used as an insulating and stabilizing material. The powder in this size range is used in applications such as electrode coatings and battery separators, improving thermal stability and safety while enhancing the overall performance and lifespan of energy storage systems.
10. Cutting Tools and Wear-Resistant Coatings:
    • Aluminum oxide’s hardness makes it a perfect material for manufacturing cutting tools, drill bits, and wear-resistant coatings. The 300 – 425 µm particle size range is used for heavy-duty applications in machining and industrial cutting tools, ensuring durability and efficient material removal, especially when cutting hard materials like metals, ceramics, and composites.

The 300 – 425 µm particle size range is ideal for applications requiring substantial material removal, abrasive surface treatment, and high-durability components. Aluminum oxide powder in this range is commonly used in industrial sectors that demand resistance to high temperatures, mechanical stress, and wear, making it an essential material for processes such as grinding, polishing, ceramics production and more.