Aluminum Oxide Micron Powder ( Al2O3, 99.5+%, 16-49 µm )

Technical Description:

Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 16-49 µm) is a high-purity aluminum oxide (Al₂O₃) powder with a purity of 99.5% or higher. The powder has a particle size range of 16-49 micrometers (µm), which is considered a medium to coarse particle size. This range provides a balance between surface area and flowability, making it suitable for a wide range of applications where strength, durability, and wear resistance are essential, while maintaining good handling characteristics.

• Chemical Composition:
  • Aluminum Oxide (Al₂O₃) content: 99.5%+, ensuring high purity with minimal contamination. This level of purity is critical for applications in advanced ceramics, coatings, and catalysts, where performance and material integrity are essential.
• Particle Size:
  • The 16-49 µm particle size provides a good compromise between surface area and strength, making it ideal for applications that require medium-sized particles for sintering, abrasive applications, and high-performance coatings. This size range allows for good flowability, density, and material interlocking.
• Shape:
  • The powder particles are typically irregular in shape, although some may exhibit slightly spherical characteristics depending on the production process. Irregularly shaped particles are ideal for sintering processes where mechanical interlocking is important for achieving dense, durable components.
• Purity:
  • With 99.5%+ purity, the powder is highly suitable for high-performance applications in industries such as aerospace, automotive, electronics, and medical devices, where minimal impurities are crucial for optimal performance and material reliability.

Applications:

1. Abrasives:
   • Aluminum oxide is widely used in the production of abrasives such as grinding wheels, polishing compounds, and sandpapers. The 16-49 µm powder is particularly useful for applications that require medium-grit abrasive materials, such as in metalworking, ceramic finishing, and precision grinding. It provides excellent hardness and durability for efficient material removal.
2. Advanced Ceramics:
   • Alumina powder is essential in the production of advanced ceramics used in demanding applications such as high-temperature crucibles, ceramic bearings, insulating parts, and sintered ceramic components. The 16-49 µm powder is ideal for creating high-strength ceramics for use in aerospace, automotive, and electronics industries, where high durability and wear resistance are needed.
3. Additive Manufacturing (3D Printing):
   • Aluminum oxide powder with the 16-49 µm particle size is used in additive manufacturing processes like Selective Laser Sintering (SLS) and Direct Metal Laser Sintering (DMLS). This powder size is ideal for producing complex geometries with high strength and thermal resistance for industries like aerospace, automotive, and medical applications.
4. Catalysts and Catalyst Supports:
   • Alumina is commonly used as a catalyst support in chemical reactions, particularly in the petrochemical, pharmaceutical, and chemical processing industries. The high surface area provided by the 16-49 µm aluminum oxide powder is ideal for supporting catalytic reactions in processes such as hydrogenation, alkylation, and reforming reactions.
5. Thermal Management:
   • Aluminum oxide has excellent thermal conductivity and thermal stability, which makes it ideal for use in thermal management applications. The alumina powder is used in the production of heat sinks, thermal interface materials (TIMs), and thermal coatings for electronics, LED lighting, and power devices, helping to dissipate heat efficiently from sensitive components.
6. Electrical Insulation:
   • Aluminum oxide is an excellent electrical insulator, and is often used in the production of insulating layers, substrates, and microelectronic components. The 16-49 µm alumina powder is perfect for high-voltage and high-frequency applications, such as power electronics, sensors, and circuit boards where electrical insulation is crucial.
7. Coatings and Surface Treatments:
   • Alumina powder is used to create abrasive coatings, wear-resistant coatings, and high-temperature coatings. These coatings are applied using thermal spraying, plasma spraying, or vacuum coating techniques to create durable coatings for aerospace parts, engine components, turbine blades, and industrial machinery that are exposed to high temperatures and harsh environments.
8. Hydrogen Storage:
   • Alumina-based materials are used in hydrogen storage systems due to their ability to efficiently absorb hydrogen. Aluminum oxide powder is utilized in metal hydride systems for hydrogen fuel cells and energy storage solutions, where it plays a crucial role in the safe and efficient storage and release of hydrogen gas.
9. Biomedical Applications:
   • Alumina ceramics are commonly used in biomedical applications, such as dental implants, joint replacements, and surgical tools due to their biocompatibility, strength, and wear resistance. Aluminum oxide powder is used to create smooth, durable, and long-lasting surfaces in medical implants that require high mechanical properties and resistance to wear and corrosion in the body.
10. Paints and Pigments:
    • Alumina powder is used in paints, coatings, and pigments for a variety of applications that require increased opacity, durability, and fire resistance. The powder is used as a pigment in white paints and pigments, as well as in fire-resistant coatings for construction, automotive, and marine applications.
11. Filtration and Separation:
    • Alumina powder is used in filtration and separation processes due to its high surface area and adsorption capabilities. Aluminum oxide is used in water purification, oil refining, and chemical separations in industries such as pharmaceuticals, chemicals, and environmental technology.
12. Superconductors:
    • Alumina is used in the production of high-temperature superconductors. It is incorporated into ceramic superconducting materials like yttrium barium copper oxide (YBCO), which are used in applications such as MRI and particle accelerators. Aluminum oxide helps to create these superconducting materials essential for scientific and medical technologies.

Summary of Benefits:

• High Purity: The 99.5%+ purity ensures minimal contamination, making it suitable for high-performance applications in coatings, ceramics, and electronics.
• Particle Size Range (16-49 µm): The 16-49 µm particle size provides an ideal balance between surface area and strength, making it suitable for sintering, abrasive applications, and high-performance coatings.
• Spherical and Irregular Shape: The particles promote good flowability, uniform deposition, and packing density, which is crucial for additive manufacturing, sintering, and coating processes.
• Versatility: The powder is highly versatile with applications across a wide range of industries, including abrasives, ceramics, catalysts, electronics, thermal management, and biomedical devices.

Conclusion:

Aluminum Oxide Micron Powder (99.5+, 16-49 µm) is a high-performance material with exceptional properties such as strength, thermal stability, abrasion resistance, and electrical insulation. Its medium particle size, high purity, and versatility make it ideal for a wide range of industrial applications, including abrasives, ceramics, catalysts, electronics, thermal management, and biomedical devices. The powder plays a vital role in creating durable, high-performance components that are essential for high-tech and industrial applications across various industries.