Aluminum Oxide Micron Powder ( Al2O3, 99.5+%, 12-40 µm )

Technical Description:

Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 12-40 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 12-40 micrometers (µm), placing it in the medium to coarse particle size category. This size range provides a balance between surface area and flowability, making it ideal for a variety of industrial applications that require durability, high strength, and wear resistance.

• Chemical Composition:
  • Aluminum Oxide (Al₂O₃) content: 99.5%+, ensuring that the powder has minimal contaminants. The high purity is essential for critical applications requiring consistent material properties, such as in coatings, abrasives, and advanced ceramics.
• Particle Size:
  • The powder has a particle size range of 12-40 µm, which ensures that it offers an optimal combination of surface area and mechanical strength. This size range is suitable for processes requiring high packing density, effective sintering, and minimal friction or wear in industrial applications.
• Shape:
  • The powder particles are typically irregular in shape, although some may exhibit slightly spherical characteristics depending on the production process. Irregular shapes are beneficial for applications requiring mechanical interlocking during processes such as sintering or powder metallurgy, where densification is important.
• Purity:
  • With 99.5%+ purity, the powder is suitable for high-performance applications in industries like aerospace, automotive, electronics, and medical devices where material consistency, reliability, and minimal impurities are crucial.

Applications:

1. Abrasives:
   • Aluminum oxide is commonly used in abrasives such as grinding wheels, polishing compounds, and sandpapers. The 12-40 µm powder is suitable for precision grinding, polishing, and finishing applications where high hardness and durability are essential, particularly in metalworking, ceramic finishing, and electronics.
2. Advanced Ceramics:
   • Alumina powder is widely used in the production of advanced ceramics that require high strength, wear resistance, and thermal stability. The 12-40 µm particle size is ideal for creating components such as ceramic bearings, high-temperature crucibles, and sintered ceramics used in demanding environments such as aerospace, automotive, and electronics.
3. Additive Manufacturing (3D Printing):
   • Aluminum oxide powder with 12-40 µm particle size is well-suited for additive manufacturing techniques like Selective Laser Sintering (SLS) and Direct Metal Laser Sintering (DMLS). The powder is used to create high-performance parts that require strength, thermal resistance, and precision in industries like aerospace, automotive, and medical.
4. Catalysts and Catalyst Supports:
   • Alumina is widely used as a catalyst support in a variety of chemical reactions, especially in the petrochemical and pharmaceutical industries. The high surface area provided by the 12-40 µm alumina powder offers excellent support for catalysts, helping to enhance the efficiency and selectivity of processes such as hydrogenation, alkylation, and reforming reactions.
5. Thermal Management:
   • Alumina is known for its excellent thermal conductivity and thermal stability, making it ideal 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. These components help dissipate heat efficiently and prevent damage to sensitive electronic parts.
6. Electrical Insulation:
   • Aluminum oxide is an excellent electrical insulator and is used in the manufacture of electrical components such as substrates, insulating coatings, and microelectronic devices. The 12-40 µm aluminum oxide powder is ideal for creating insulating layers and substrates for high-voltage and high-frequency applications such as power electronics and circuit boards.
7. Coatings and Surface Treatments:
   • Alumina powder is used in the production of abrasive coatings, wear-resistant coatings, and corrosion-resistant coatings. The powder is applied using thermal spraying, plasma spraying, or vacuum coating techniques to create durable coatings for aerospace parts, gas turbines, engine components, and industrial machinery exposed to high-temperature and harsh environments.
8. Hydrogen Storage:
   • Alumina-based materials are used in hydrogen storage systems because of their ability to efficiently absorb and release hydrogen. Aluminum oxide powder is employed in metal hydride systems for hydrogen fuel cells and energy storage solutions. These systems are critical for clean energy applications and fuel cell technology.
9. Biomedical Applications:
   • Alumina ceramics are widely 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, ensuring high mechanical properties and resistance to wear and corrosion in the body.
10. Paints and Pigments:
    • Aluminum oxide is used in paints, coatings, and pigments to improve opacity, durability, and fire resistance. The powder is used in fire-resistant paints, construction coatings, and automotive finishes to enhance the surface protection and durability of exposed materials, especially in harsh environments.
11. Filtration and Separation:
    • Alumina powder is used in filtration and separation processes. Due to its high surface area, it is effective in water purification, oil refining, and chemical separations. Aluminum oxide is used as a filter medium and adsorbent in industries such as pharmaceuticals, chemical processing, and environmental technology.
12. Superconductors:
    • Alumina is also used in the production of high-temperature superconductors when combined with other materials such as barium copper oxide. Aluminum oxide plays a role in creating superconducting materials like yttrium barium copper oxide (YBCO), which are used in applications such as MRI and particle accelerators. The alumina powder is essential for the creation of these superconducting materials that are important for scientific and medical technologies.

Summary of Benefits:

• High Purity: The 99.5%+ purity ensures minimal contamination, making the powder ideal for high-performance applications in ceramics, coatings, electronics, and medical devices.
• Particle Size Range (12-40 µm): The 12-40 µm particle size offers a good balance of surface area and mechanical strength, making it suitable for applications that require high packing density and effective sintering or coating.
• Spherical and Irregular Shape: The particles promote good flowability, packing density, and uniform deposition, which is crucial for additive manufacturing, sintering, and coating processes.
• Versatility: The powder is widely used in abrasives, ceramics, catalysts, electronics, thermal management, and biomedical devices, demonstrating its broad applicability across various industries.

Conclusion:

Aluminum Oxide Micron Powder (99.5+, 12-40 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 versatile applications make it ideal for a wide range of industrial applications, including abrasives, ceramics, catalysts, electronics, thermal management, and biomedical devices. The powder’s ability to perform in demanding environments ensures its importance in creating durable, high-performance components used across various industries.