Aluminum Oxide Micron Powder ( Al2O3, 99.5+%, 45-75 µm )

Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 45–75 µm) is a high-purity alumina powder characterized by its outstanding hardness, thermal stability, and chemical resistance. With a particle size range of 45 to 75 micrometers, this powder is ideal for applications requiring coarse particles with superior flowability and excellent packing density. Its 99.5+% purity ensures consistent and reliable performance, making it suitable for use in advanced ceramics, abrasives, thermal coatings, and high-temperature industrial processes across aerospace, automotive, and electronics industries.

1. Key Properties

High Purity (≥99.5%) minimizes impurities, ensuring reliable performance in high-demand applications such as advanced manufacturing, coatings, and abrasives.

Particle Size (45–75 µm) provides excellent flowability and reduced agglomeration, making it ideal for powder-based manufacturing and coating processes.

Exceptional Hardness delivers superior wear resistance, making it a preferred choice for abrasive tools, grinding media, and protective coatings.

Thermal Stability allows the material to retain its structural integrity under extreme temperatures, making it suitable for applications requiring heat resistance above 2,000 °C.

Chemical Inertness ensures durability in chemically aggressive environments, enhancing longevity in filtration, catalysis, and industrial applications.

2. Applications

Advanced Ceramics & Refractories Alumina is extensively used in high-performance ceramics and refractory materials, including kiln furniture, nozzles, and wear-resistant industrial components.

Abrasives & Polishing The 45–75 µm particle size is ideal for grinding wheels, cutting tools, and polishing compounds, offering efficiency and durability in material removal and surface finishing.

Thermal Barrier Coatings Alumina-based coatings protect industrial equipment, turbine blades, and engine parts from oxidation, erosion, and extreme heat.

Electronics & Insulation Alumina’s dielectric properties and thermal conductivity make it indispensable for substrates, sensor housings, and other insulating components in electronic devices.

Catalysis & Filtration High-purity alumina acts as a catalyst support and filtration medium, offering exceptional stability under high temperatures and corrosive conditions.

3. Advantages

Improved Flowability The coarse particle size enhances flow characteristics, ensuring consistent feeding during manufacturing processes like sintering and spraying.

Wear Resistance Alumina’s extreme hardness extends the lifespan of components, tools, and coatings exposed to abrasive or high-friction environments.

Thermal Durability Alumina maintains its mechanical properties at elevated temperatures, making it reliable for refractory linings, thermal barriers, and high-temperature industrial applications.

Chemical Stability Resistance to acids, alkalis, and solvents ensures the reliability of alumina-based products in challenging chemical processing and filtration systems.

Electrical Insulation Alumina’s dielectric properties make it suitable for insulating components in high-voltage and high-temperature electronic systems.

4. Recent Trends and Research

Additive Manufacturing is incorporating coarse alumina powders for advanced 3D printing techniques, enabling the production of complex, durable ceramic parts.

Advanced Coating Technologies are refining the adhesion and performance of alumina-based thermal and protective coatings for aerospace and industrial applications.

Optimized Abrasives are being developed to enhance cutting efficiency, reduce wear, and deliver precision in industrial and consumer applications.

Sustainability Efforts are driving the recycling of alumina from used abrasives and ceramic waste, reducing environmental impact and supporting green manufacturing initiatives.

Energy Sector Applications are expanding, with alumina being utilized in catalysis, energy storage, and filtration systems for cleaner, more efficient industrial processes.

5. Future Prospects

High-Performance Ceramics will evolve further as advances in powder processing and sintering enable the production of more intricate and durable components.

Innovative Coatings leveraging alumina’s thermal and wear-resistant properties will find broader adoption in aerospace, automotive, and energy applications.

Medical Applications will see alumina’s biocompatibility and wear resistance supporting advancements in surgical instruments, implants, and dental devices.

Lightweight Composites reinforced with alumina will continue to play a larger role in automotive and aerospace industries, offering enhanced strength-to-weight ratios.

Clean Energy Systems will benefit from alumina’s expanding role in filtration, catalysis, and energy storage technologies, supporting global sustainability goals.

With its 99.5+% purity and 45–75 µm particle size range, Aluminum Oxide Micron Powder (Al₂O₃, 99.5+%, 45–75 µm) provides exceptional durability, thermal stability, and wear resistance for a wide variety of industrial and high-performance applications. From advanced ceramics and abrasives to protective coatings and electronics, alumina remains a vital material for cutting-edge engineering and manufacturing solutions.