Technical Specification of Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 63 – 106 µm):
1. Product Name: Aluminum Oxide Micron Powder
2. Chemical Formula: Al₂O₃
3. Purity: 99.5% minimum
4. Particle Size: 63 – 106 µm
5. Appearance: White, fine powder
6. Specific Surface Area: Varies depending on particle size and production method
7. Density: Approximately 3.95 g/cm³
8. Melting Point: 2,072°C (3,762°F)
9. Boiling Point: Sublimation point is around 2,977°C (5,391°F)
10. Refractive Index: 1.765 (at 589 nm)
11. Mohs Hardness: 9 (one of the hardest materials, second only to 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 sealed in moisture-resistant bags or drums to prevent contamination.
Applications of Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 63 – 106 µm):
- Abrasives:
- Aluminum oxide powder in the 63 – 106 µm particle size range is ideal for use in abrasive products such as grinding wheels, polishing compounds, and sandpapers. It is commonly used in applications requiring heavier abrasive actions, such as rough grinding, surface preparation, and material removal from metals, ceramics, and other hard materials.
- Refractory Materials:
- Due to its high melting point and excellent thermal stability, aluminum oxide is extensively used in refractory applications, such as in furnaces, kilns, and reactors in high-temperature industrial processes, including steel production and glass manufacturing.
- Ceramic Production:
- Aluminum oxide powder is essential in the production of advanced ceramics, offering high strength, wear resistance, and thermal stability. It is used to create components for industries like electronics, automotive, aerospace, and precision engineering, where mechanical properties and resistance to wear are critical.
- Electronics and Electrical Insulation:
- With its excellent insulating properties, aluminum oxide powder is used in the production of electrical insulators, substrates for semiconductors, capacitors, and high-performance electronic components that require stable dielectric properties and thermal conductivity.
- Polishing and Surface Refining:
- Aluminum oxide powder in this size range is effective for medium-grade polishing and finishing applications, including the removal of burrs, scratches, and imperfections from metal surfaces, optical lenses, and other delicate components. It also finds use in polishing gemstones and ceramics.
- Catalyst Supports:
- Aluminum oxide is widely used as a support material for catalysts in numerous industrial processes. It plays a crucial role in petroleum refining, chemical production, and environmental catalysis. The high surface area and stability of aluminum oxide enhance its catalytic performance, making it valuable in chemical reactions such as cracking, hydrogenation, and oxidation.
- Water Filtration:
- Aluminum oxide powder is sometimes employed in filtration systems for water purification. Its ability to adsorb impurities and contaminants makes it effective for use in industrial and environmental water treatment applications, where clean water is essential for processes.
- Thermal Insulation:
- Due to its excellent thermal conductivity and high melting point, aluminum oxide powder is utilized in thermal insulation applications, such as in furnace linings, heat shields, and thermal barriers in high-temperature environments, particularly in industries like metallurgy, aerospace, and manufacturing.
- Battery and Energy Storage:
- In the energy storage sector, aluminum oxide is used in advanced battery technologies. It serves as a stabilizing material or protective coating in batteries such as lithium-ion, helping to improve their performance, lifespan, and thermal management.
- Cutting Tools and Wear-Resistant Coatings:
- The hardness of aluminum oxide makes it ideal for manufacturing cutting tools, drill bits, and wear-resistant coatings. This material is employed in industries that require durable tools for machining hard materials like metals and ceramics, such as in automotive manufacturing and metalworking.
The 63-106 µm particle size range is particularly suited for heavy-duty abrasive tasks, surface refinement, and applications that require a durable, high-performance material capable of withstanding high temperatures and mechanical stress. Aluminum oxide micron powder in this size is used in a broad spectrum of industrial sectors, offering benefits like high hardness, wear resistance, and thermal stability.
