Technical Specification of Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 425 – 600 µm):
1. Product Name: Aluminum Oxide Micron Powder
2. Chemical Formula: Al₂O₃
3. Purity: 99.5% minimum
4. Particle Size: 425 – 600 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+%, 425 – 600 µm):
- Abrasives:
- Aluminum oxide powder in the 425 – 600 µm size range is ideal for extremely coarse abrasive applications. It is widely used in heavy-duty grinding, material removal, and sandblasting operations. This particle size is suitable for large-scale, industrial grinding wheels, abrasive discs, and sandpapers that need to handle rough surface preparation, deburring, and significant material removal, especially for hard materials such as metals, ceramics, and stone.
- Refractory Materials:
- Aluminum oxide’s high melting point and exceptional resistance to thermal shock make it ideal for use in refractory materials. The 425 – 600 µm size range is particularly useful for creating refractory linings, insulation materials, and heat-resistant components in high-temperature environments such as furnaces, kilns, and reactors. It is commonly used in steel production, cement manufacturing, glass production, and other industries requiring heat-resistant materials.
- Ceramic Production:
- This particle size of aluminum oxide is used in the manufacturing of advanced technical ceramics. These ceramics are valued for their excellent mechanical properties, wear resistance, and thermal stability. The material is commonly used to produce components for aerospace, automotive, and electronics applications, where durability and resistance to extreme conditions are essential.
- Polishing and Surface Refining:
- Aluminum oxide powder in the 425 – 600 µm size range is used for rough polishing and coarse surface refinement. It is typically employed in large-scale grinding and polishing of metals, ceramics, and stone. This size range is effective for smoothing rough surfaces and preparing materials for further fine polishing. It is also used in the polishing of large-scale parts or objects, such as metal plates, glass panels, and stone tiles.
- Electronics and Electrical Insulation:
- In electronics, aluminum oxide is often used as an insulating material for substrates in semiconductors, capacitors, and other components. This powder is also employed in electrical insulators and dielectric materials. The 425 – 600 µm size range is suitable for applications requiring high thermal conductivity and electrical insulation in high-power electronic systems and devices.
- Catalyst Supports:
- Aluminum oxide is widely used as a catalyst support material in various chemical reactions. Its high surface area and excellent stability under extreme conditions make it ideal for catalytic processes in industries such as petroleum refining, hydrogenation, and ammonia production. This size range is particularly beneficial in applications requiring bulk support in catalytic reactors.
- Water Filtration:
- Due to its adsorptive properties, aluminum oxide is used in water filtration systems to remove particulates and impurities from water. The 425 – 600 µm size is effective for filtration applications where coarse particles need to be removed, such as in industrial water treatment or in larger-scale municipal water purification systems.
- Thermal Insulation:
- Aluminum oxide powder is widely used in the creation of high-performance thermal insulation materials. The 425 – 600 µm size range is particularly useful for insulating high-temperature equipment such as furnaces, kilns, and reactors. It provides effective heat protection and helps maintain temperature stability in industries requiring precise thermal management, such as metallurgy and aerospace.
- Battery and Energy Storage:
- In the energy storage industry, especially in batteries such as lithium-ion and sodium-ion types, aluminum oxide is used in various components, including electrodes and separators. The powder helps improve the thermal stability and performance of batteries, ensuring longer life cycles, safer operation, and better overall energy storage efficiency.
- Cutting Tools and Wear-Resistant Coatings:
- Due to its hardness, aluminum oxide powder in the 425 – 600 µm size range is used in the production of cutting tools, drill bits, and wear-resistant coatings. It is ideal for applications where cutting or grinding hard materials such as metals, ceramics, and composites is required. The material’s abrasive nature ensures durability and long-lasting tool performance even in harsh industrial conditions.
The 425 – 600 µm particle size range of aluminum oxide is best suited for applications requiring coarse abrasiveness, large-scale material removal, and robust surface preparation. It is highly effective in industrial processes that demand exceptional durability, high temperature resistance, and wear resistance. This size range ensures that aluminum oxide can handle large volumes and tough materials, making it indispensable in industries like metalworking, ceramics, refractories, electronics, and energy storage.
