Technical Specification of Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 180 – 250 µm):
1. Product Name: Aluminum Oxide Micron Powder
2. Chemical Formula: Al₂O₃
3. Purity: 99.5% minimum
4. Particle Size: 180 – 250 µm
5. Appearance: White, fine powder
6. Specific Surface Area: Dependent on particle size and manufacturing method
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+%, 180 – 250 µm):
- Abrasives:
- Aluminum oxide powder in the 180 – 250 µm size range is typically used for very coarse abrasive applications. It is highly effective for rough grinding, sanding, and material removal tasks where significant abrasion is needed. This size range is often employed in products like grinding wheels, sandpapers, and other coarse abrasives designed for industrial material removal, deburring, and surface preparation, particularly for hard materials like metals, ceramics, and stone.
- Refractory Materials:
- Due to its high melting point and exceptional thermal stability, aluminum oxide is widely used in refractory materials. The 180 – 250 µm size range is ideal for creating refractory linings for furnaces, kilns, and reactors used in industries such as steel production, glassmaking, and ceramics. It provides excellent resistance to high-temperature environments and thermal shock.
- Ceramic Production:
- Aluminum oxide is commonly used in the manufacturing of advanced ceramics due to its excellent wear resistance, strength, and thermal stability. In this size range, it is often employed in producing industrial ceramics and components for applications in automotive, aerospace, and precision engineering where mechanical properties and durability are essential.
- Polishing and Surface Refining:
- The 180 – 250 µm aluminum oxide powder is used for heavy-duty polishing and coarse surface refinement. It is effective for removing large imperfections, such as rough areas and deep scratches, from metal, glass, ceramics, and other tough materials. It is commonly used for rough grinding, deburring, and polishing applications where the goal is to achieve a smooth, uniform surface.
- Electronics and Electrical Insulation:
- In electronics, aluminum oxide powder in this size range can be used to manufacture electrical insulators, substrates for semiconductors, and capacitors. Its excellent dielectric properties and thermal conductivity make it suitable for use in electronic devices that require insulation, thermal management, and protection against electrical currents.
- Catalyst Supports:
- Aluminum oxide is widely used as a catalyst support material in various industrial applications. This particular size range is effective for applications in petroleum refining, hydrogenation, and other catalytic processes. The material’s high surface area and thermal stability enhance the efficiency of catalytic reactions, making it indispensable in many chemical processes.
- Water Filtration:
- Aluminum oxide in this particle size range is used in water filtration and purification applications, where it helps to remove impurities, particulates, and contaminants from water. It is used in industrial, municipal, and environmental water treatment systems for its ability to adsorb harmful substances from water sources.
- Thermal Insulation:
- Aluminum oxide powder, with its high thermal conductivity and resistance to heat, is used for creating high-performance thermal insulation materials. In this size range, it is used in the production of heat shields, furnace linings, and other insulating components designed to withstand extreme temperatures in industries such as metallurgy, aerospace, and high-temperature chemical processing.
- Battery and Energy Storage:
- In battery technology, particularly in lithium-ion and sodium-ion batteries, aluminum oxide is sometimes used in electrodes or as part of the separator to enhance the performance and stability of the batteries. The size range is typically utilized for creating stable, insulating layers that prevent overheating and improve the lifespan of the batteries.
- Cutting Tools and Wear-Resistant Coatings:
- Due to its hardness and wear resistance, aluminum oxide powder in this particle size range is used to produce cutting tools, wear-resistant coatings, and abrasives. It is employed in industries requiring durable tools for machining hard materials like metals and ceramics, ensuring the longevity of tools even under high-stress conditions.
The 180 – 250 µm particle size range is especially suitable for applications where substantial material removal, coarse surface finishing, and heavy-duty abrasion are required. Aluminum oxide powder in this range is widely used across industries such as metalworking, ceramics, refractories, and electronics, thanks to its combination of hardness, thermal stability, and resistance to wear and high temperatures.
