Technical Specification of Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 45 – 75 µm):
1. Product Name: Aluminum Oxide Micron Powder
2. Chemical Formula: Al₂O₃
3. Purity: 99.5% minimum
4. Particle Size: 45 – 75 µm
5. Appearance: White, fine powder
6. Specific Surface Area: Varies based on the 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 (high hardness, second only to diamond)
12. Electrical Conductivity: Insulating material (high resistivity)
13. Thermal Conductivity: 30 W/(m·K)
14. pH (in water): Neutral, around 7
15. Packaging: Usually packed in sealed bags or drums to prevent contamination and moisture absorption.
Applications of Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 45 – 75 µm):
- Abrasives:
- Aluminum oxide in this particle size range is highly suitable for abrasive materials used in grinding, polishing, and cutting applications. It is ideal for use in products like grinding wheels, sandpapers, and polishing compounds, particularly for hard materials like metals and ceramics.
- Refractory Materials:
- Given its high melting point and excellent thermal stability, aluminum oxide powder is extensively used in the production of refractories for high-temperature applications. These include furnaces, kilns, and reactors, especially in industries such as steel, glass, and ceramics.
- Ceramic Manufacturing:
- Aluminum oxide is widely used in the manufacturing of ceramic materials. It provides excellent wear resistance and strength, making it suitable for the production of advanced ceramics, including technical ceramics, components for semiconductor production, and ceramic coatings.
- Electronics and Electrical Insulation:
- Aluminum oxide’s insulating properties are valuable in the electronics industry. It is used in producing electrical insulators, substrates for semiconductors, capacitors, and components that require stable dielectric properties and thermal conductivity.
- Polishing and Surface Refining:
- With its micron-sized particles, aluminum oxide powder is ideal for polishing and finishing surfaces to a fine, smooth texture. It is used to polish metals, optical lenses, glass, gemstones, and semiconductor components, as well as for high-precision surface treatments.
- Catalyst Support:
- Aluminum oxide is an important support material in catalytic processes, particularly in petroleum refining, chemical manufacturing, and environmental catalysts. Its high surface area and stability under various chemical reactions make it a key component for catalyst supports in processes like hydrogenation and cracking.
- Water Purification:
- In water treatment applications, aluminum oxide powder can act as a filtration medium. It can remove contaminants and impurities from water, enhancing the filtration process for clean water in industrial and commercial uses.
- Thermal Insulation:
- Due to its excellent thermal properties, aluminum oxide powder is used as a heat-insulating material. It is applied in industries that deal with high-temperature processes, providing effective thermal insulation for components like pipes, heat shields, and furnaces.
- Battery and Energy Storage:
- In the battery industry, aluminum oxide is sometimes used in the production of components such as separators, electrode coatings, and stabilizing layers. Its use improves the performance, stability, and longevity of batteries like lithium-ion and sodium-ion batteries.
- Cutting Tools and Wear-Resistant Coatings:
- Aluminum oxide powder is commonly used in the manufacturing of cutting tools and wear-resistant coatings due to its hardness and abrasion resistance. It is effective for machining and processing materials like metals and ceramics in industries where tool longevity and material precision are crucial.
This specific particle size range (45 – 75 µm) strikes a good balance between effective abrasiveness and fine surface finishing, making it highly valuable across industries that require high-performance materials with outstanding mechanical and thermal properties.
