Aluminum Oxide Micron Powder ( Al2O3, 99.5+%, 3-19 µm )

Technical Description:

Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 3-19 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 3-19 micrometers (µm), which places it in the fine to medium particle size category. This particle size range offers a balance between surface area and flowability, making it suitable for a variety of industrial applications that require precise material properties, high strength, and durability.

• Chemical Composition:
  • Aluminum Oxide (Al₂O₃) content: 99.5+%, ensuring that the powder is made of predominantly high-purity alumina with minimal contamination. This level of purity is crucial for high-performance applications where consistency and reliability are key.
• Particle Size:
  • The powder has an average particle size range of 3-19 µm, providing an optimal balance between a large surface area and ease of handling. This size range is ideal for applications such as sintering, abrasive manufacturing, and ceramic production, where both reactivity and mechanical properties are important.
• Shape:
  • The powder particles are typically irregular in shape, though some may exhibit slightly spherical characteristics depending on the manufacturing process. Irregularly shaped particles can provide better interlocking and densification during sintering processes.
• Purity:
  • With 99.5% or higher purity, the powder is ideal for high-performance applications that require minimal contaminants, such as in advanced ceramics, coatings, and electronics.

Applications:

1. Abrasives:
   • Aluminum oxide is widely used in the production of abrasives such as grinding wheels, polishing compounds, and sandpapers. The 3-19 µm aluminum oxide powder is ideal for precision grinding, polishing, and finishing applications, particularly in metalworking, ceramic finishing, and electronics industries.
2. Advanced Ceramics:
   • Alumina is a key material in the production of advanced ceramics used in industries that require materials with high strength, wear resistance, and thermal stability. The fine alumina powder is used to create components such as insulating parts, high-temperature crucibles, and ceramic bearings used in aerospace, automotive, and chemical processing industries.
3. Additive Manufacturing (3D Printing):
   • Alumina powder is suitable for additive manufacturing processes like Selective Laser Sintering (SLS), Direct Metal Laser Sintering (DMLS), and Electron Beam Melting (EBM). The 3-19 µm particle size allows for precise deposition of material in the production of high-performance components used in aerospace, automotive, and medical applications where strength, thermal resistance, and high precision are required.
4. Catalysts and Catalyst Supports:
   • Aluminum oxide is used as a catalyst support in various chemical reactions, particularly in the petrochemical and pharmaceutical industries. The high surface area provided by the 3-19 µm alumina powder is ideal for supporting catalytic materials in processes like hydrogenation, alkylation, and reforming reactions.
5. Thermal Management:
   • Alumina has excellent thermal conductivity and thermal stability, making it suitable for use in thermal management applications. The aluminum oxide powder is used in the production of heat sinks, thermal interface materials (TIMs), and thermal coatings for electronics, power devices, and LED lighting. The powder helps dissipate heat efficiently and prevents thermal damage to sensitive components.
6. Electrical Insulation:
   • Aluminum oxide is an excellent electrical insulator, which makes it ideal for use in insulating coatings, substrates, and microelectronic devices. The fine 3-19 µm alumina powder is used to create insulating layers for high-voltage components and electronic substrates used in power electronics, sensors, and circuit boards.
7. Coatings and Surface Treatments:
   • Alumina powder is used in thermal spray coatings and plasma spray coatings to produce wear-resistant and high-temperature resistant coatings. These coatings are commonly applied to aerospace parts, engine components, and industrial machinery that are exposed to high-temperature environments and abrasive conditions.
8. Hydrogen Storage:
   • Alumina-based materials are explored for use in hydrogen storage applications, particularly in metal hydride systems. The fine aluminum oxide powder improves the efficiency of hydrogen absorption and desorption, making it suitable for fuel cells and renewable energy applications that require high-density, safe hydrogen storage.
9. Biomedical Applications:
   • Alumina ceramics are used in biomedical applications such as dental implants, joint replacements, and surgical tools due to their biocompatibility, strength, and wear resistance. The aluminum oxide powder is used to produce smooth, durable, and long-lasting surfaces in medical implants.
10. Paints and Pigments:
    • Aluminum oxide is used in the paint and pigment industries for opacity enhancement and fire-retardant properties. The fine alumina powder is incorporated into paints, coatings, and plastics to increase durability, improve resistance to weathering, and add heat resistance to surfaces in construction, automotive, and marine applications.
11. Filtration and Separation:
    • Alumina powder is used in the manufacture of filter materials and adsorbents for chemical, water, and air filtration applications. Aluminum oxide is highly effective at adsorbing impurities, making it suitable for water purification, oil refining, and chemical separations in industries such as pharmaceuticals and chemicals.
12. Superconductors:
    • Alumina is also used in the production of high-temperature superconductors when combined with other materials such as barium copper oxide. The fine powder is used to create ceramic superconducting materials that are used in applications like magnetic resonance imaging (MRI) and particle accelerators.

Summary of Benefits:

• High Purity: The 99.5%+ purity ensures minimal contamination, making it ideal for high-performance applications where consistency and material integrity are crucial.
• Particle Size Range (3-19 µm): The 3-19 µm particle size range offers a balance of high surface area and good flowability, making it suitable for applications that require precise material deposition, sintering, and processing.
• Spherical Shape: The spherical particles promote flowability, uniform deposition, and packing density, which is essential for additive manufacturing, powder metallurgy, and sintering applications.
• Versatility: The powder is highly versatile, with applications in a wide range of industries, including abrasives, ceramics, catalysts, electronics, thermal management, and biomedical devices.

Conclusion:

Aluminum Oxide Micron Powder (99.5+, 3-19 µm) is a high-performance material with a broad range of applications in industries requiring high strength, thermal stability, wear resistance, and electrical insulation. Its fine particle size and high purity make it ideal for abrasive, ceramic, catalytic, and thermal management applications, as well as for use in additive manufacturing and biomedical devices. The powder’s versatility ensures its importance in a variety of advanced manufacturing processes, contributing to the production of durable, high-performance components.