Technical Specification of Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 850 – 1180 µm):
1. Product Name: Aluminum Oxide Micron Powder
2. Chemical Formula: Al₂O₃
3. Purity: 99.5% minimum
4. Particle Size: 850 – 1180 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+%, 850 – 1180 µm):
- Abrasives:
- Aluminum oxide powder in the 850 – 1180 µm particle size range is typically used for extremely coarse abrasive applications, where aggressive material removal is required. This size range is ideal for heavy-duty grinding, sandblasting, and surface preparation, often in industries like metalworking, stone cutting, and ceramics. It is used in large-scale grinding wheels, abrasive discs, and sandpapers designed for tough applications and large-scale material processing.
- Refractory Materials:
- Due to its high melting point (2,072°C) and excellent thermal shock resistance, aluminum oxide is widely used in refractory applications. The 850 – 1180 µm size is suitable for creating refractory linings, heat-resistant components, and insulating materials in high-temperature environments like furnaces, kilns, and reactors. It is commonly used in industries such as steel manufacturing, glass production, and cement production.
- Ceramic Production:
- Aluminum oxide powder in this particle size range is utilized in the manufacturing of advanced technical ceramics. Its hardness, wear resistance, and thermal stability make it ideal for creating durable and high-performance ceramic components, which are commonly used in aerospace, automotive, and electronics industries. These ceramics are designed to withstand harsh conditions while maintaining mechanical strength and stability.
- Polishing and Surface Refining:
- The 850 – 1180 µm aluminum oxide powder is effective in rough polishing and coarse surface refining, where substantial material removal is needed. It is typically used in polishing metals, ceramics, glass, and stones, especially for large-scale parts or surfaces that require significant smoothing or deburring before finer polishing. This size range is also suitable for preparing surfaces for further finishing.
- Electronics and Electrical Insulation:
- Aluminum oxide is commonly used in the electronics industry for electrical insulation in components such as substrates for semiconductors, capacitors, and high-voltage insulators. The 850 – 1180 µm particle size range is ideal for manufacturing insulating materials that require both high dielectric strength and thermal conductivity, helping stabilize and protect electronic components in high-power devices.
- Catalyst Supports:
- Aluminum oxide serves as an excellent catalyst support material in chemical reactions. This particle size range is useful for bulk catalyst support applications, where large surface areas and excellent thermal stability are essential. Aluminum oxide is commonly used in catalytic converters, petroleum refining, hydrogenation processes, and ammonia production.
- Water Filtration:
- Due to its ability to adsorb and trap impurities, aluminum oxide is used in water filtration applications to remove particulates and contaminants. The 850 – 1180 µm particle size is particularly useful in large-scale filtration systems where coarse particles need to be captured. It is often used in both industrial and municipal water treatment to purify water and improve its quality.
- Thermal Insulation:
- Aluminum oxide’s high melting point and resistance to heat make it a valuable material for thermal insulation applications. The 850 – 1180 µm particle size range is suitable for creating insulation materials for high-temperature environments, such as heat shields, furnace linings, and reactors. It is used in industries like metallurgy, aerospace, and chemical processing, where effective heat protection is required.
- Battery and Energy Storage:
- In energy storage applications, especially in lithium-ion and sodium-ion batteries, aluminum oxide is used as a stabilizing or insulating material in electrodes and separators. This powder helps improve battery performance by preventing overheating and enhancing thermal management, leading to longer battery life and safer operation.
- Cutting Tools and Wear-Resistant Coatings:
- Aluminum oxide’s exceptional hardness and wear resistance make it ideal for producing cutting tools, wear-resistant coatings, and abrasives used in heavy-duty machining applications. The 850 – 1180 µm size range is typically used for manufacturing industrial tools for cutting or grinding hard materials such as metals, ceramics, and composites. These tools provide enhanced durability and performance, even under extreme stress and wear conditions.
The 850 – 1180 µm particle size range of aluminum oxide is particularly well-suited for industrial applications requiring coarse abrasiveness, heavy material removal, and surface preparation. This range is ideal for applications in metalworking, ceramics, refractories, and energy storage, providing durability, thermal stability, and exceptional mechanical properties. Its ability to withstand high temperatures and mechanical stress makes it invaluable in a variety of industrial sectors.
