Technical Specification of Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 53 – 90 µm):
1. Product Name: Aluminum Oxide Micron Powder
2. Chemical Formula: Al₂O₃
3. Purity: 99.5% minimum
4. Particle Size: 53 – 90 µm
5. Appearance: White, fine powder
6. Specific Surface Area: Dependent on the 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 around 2,977°C (5,391°F)
10. Refractive Index: 1.765 (at 589 nm)
11. Mohs Hardness: 9 (harder than most minerals, second only to diamond)
12. Electrical Conductivity: Insulator (very high electrical 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 avoid contamination and exposure to moisture.
Applications of Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 53 – 90 µm):
- Abrasives:
- Aluminum oxide powder in this particle size range is commonly used in abrasives such as grinding wheels, sandpapers, and polishing compounds. The size is particularly suitable for applications requiring moderate abrasiveness, including surface grinding and finishing of metal, glass, and ceramics.
- Refractory Materials:
- With its high melting point and thermal stability, aluminum oxide is used in the production of refractory materials for high-temperature environments. It is used in industrial applications such as steel production, kilns, and furnaces, where materials must withstand extreme heat.
- Ceramic Production:
- Aluminum oxide powder is used extensively in the production of advanced ceramics. The material’s excellent hardness, wear resistance, and thermal stability make it ideal for ceramic components such as insulating substrates, wear-resistant parts, and even components for electronics.
- Electronics and Insulation:
- In the electronics industry, aluminum oxide powder is used for electrical insulators, semiconductor substrates, and dielectric materials. Its high dielectric strength and thermal conductivity make it suitable for stabilizing components in high-performance electronic devices.
- Polishing and Surface Finishing:
- This size range of aluminum oxide powder is suitable for polishing and finishing surfaces to remove imperfections and achieve a high-quality finish. It is used to polish metals, optical components, gemstones, and even in the semiconductor industry for wafer polishing.
- Catalysts and Catalyst Supports:
- Aluminum oxide is widely used as a support for catalysts in a variety of chemical processes. Its high surface area and chemical stability make it an excellent material for supporting catalysts used in reactions like petroleum refining, ammonia production, and hydrogenation.
- Water Treatment and Filtration:
- Aluminum oxide powder is used in some filtration systems, where its ability to adsorb and remove contaminants makes it effective in water treatment and purification processes, enhancing water quality for industrial and environmental applications.
- Thermal Insulation:
- The excellent thermal conductivity and insulating properties of aluminum oxide make it suitable for use in thermal insulation applications. It is applied in industries that deal with high heat environments, such as furnace linings, heat shields, and insulative coatings for high-temperature equipment.
- Battery Technology:
- In advanced battery systems, such as lithium-ion and sodium-ion batteries, aluminum oxide powder can be used in electrodes or as a stabilizing coating on components to enhance battery performance, increase stability, and prolong cycle life.
- Cutting Tools and Wear-Resistant Coatings:
- Aluminum oxide powder in this micron size is also used for producing cutting tools and coatings that offer resistance to wear and abrasion. It is used in industries requiring high-performance tools for machining hard materials like metals, ceramics, and composites.
The 53-90 µm particle size range of aluminum oxide micron powder is versatile, offering a good balance between abrasiveness, surface finish, and material durability for various industrial, electronic, and manufacturing applications. Its hardness and thermal properties make it indispensable across multiple sectors.
