Technical Specifications
- Product Name: Aluminum Oxide Nanopowder
- Chemical Formula: Al₂O₃ (Aluminum Oxide)
- CAS Number: 1344-28-1
- Purity
- Grade: 99+% (high purity)
- Impurities: ≤1% (trace amounts of other oxides or non-metallic elements)
- Particle Size
- Average Size: ~80 nm
- Particle Size Distribution: Uniformly distributed, verified via SEM (Scanning Electron Microscopy) or TEM (Transmission Electron Microscopy)
- Crystal Structure
- Phase: 100% Alpha-phase (corundum structure, the most thermodynamically stable phase of Al₂O₃)
- Morphology
- Shape: Near-spherical or irregular particles
- Surface Area: High, with nanoscale size enhancing surface activity and interactions
- Physical and Chemical Properties
- Color: White powder
- Density: ~3.95–4.0 g/cm³
- Melting Point: ~2,072 °C
- Boiling Point: ~2,977 °C
- Thermal Conductivity: High, approximately 30 W/m·K
- Electrical Properties: Insulator with excellent dielectric properties
- Packaging and Storage
- Standard Packaging: Sealed in airtight containers to minimize contamination and moisture absorption
- Storage Conditions: Store in a cool, dry environment; avoid exposure to moisture and acidic or basic environments
- Shelf Life: Stable under proper storage conditions
- Safety and Handling
- Hazards:
- Fine aluminum oxide powder may cause respiratory irritation if inhaled.
- Non-combustible but may create airborne dust under handling.
- Recommended Protective Measures:
- Use PPE (e.g., gloves, goggles, and dust masks).
- Ensure adequate ventilation during handling to prevent dust accumulation.
- Hazards:
Applications
- Ceramics and Refractories
- Advanced Ceramics: Aluminum oxide nanoparticles are used in high-performance ceramics, providing excellent mechanical strength, hardness, and wear resistance.
- Refractory Materials: Applied in high-temperature environments such as furnaces and kilns due to its high melting point and thermal stability.
- Coatings and Surface Treatments
- Protective Coatings: Used to enhance wear resistance, thermal stability, and corrosion resistance on metal and ceramic surfaces.
- Thermal Barrier Coatings: Effective in high-temperature applications such as turbine blades and engine components.
- Polishing and Abrasives
- Precision Polishing: Nano-Al₂O₃ is used in polishing semiconductors, optics, and metals due to its fine particle size and hardness.
- Abrasive Materials: Incorporated into grinding and cutting tools for high-precision operations.
- Electronics and Dielectrics
- Insulating Layers: Aluminum oxide nanomaterials are used in microelectronics and thin-film applications due to their excellent dielectric properties.
- Thermal Management: Applied in thermal interface materials (TIMs) to enhance heat dissipation in electronics.
- Energy Applications
- Batteries: Used as a coating material for lithium-ion battery separators to improve thermal stability and prevent short circuits.
- Fuel Cells: Serves as a stable support material in solid oxide fuel cells (SOFCs) due to its chemical stability and conductivity.
- Catalysis
- Catalyst Support: Acts as a stable and high-surface-area support for catalysts in petrochemical and environmental applications.
- Adsorption: High surface area makes it suitable for adsorption of pollutants and gases.
- Nanocomposites
- Reinforcement Material: Aluminum oxide nanoparticles enhance the mechanical and thermal properties of polymers, metals, and ceramics in composite materials.
- Lightweight Structures: Widely used in aerospace and automotive components for high strength-to-weight applications.
- Biomedical Applications
- Biocompatibility: Used in dental and orthopedic implants due to its biocompatibility and wear resistance.
- Drug Delivery Systems: Explored as a carrier for targeted drug delivery in nanomedicine.
- Research and Development
- Material Science: Extensively used in experimental studies to explore nanoscale properties and advanced applications.
- Prototype Development: Ideal for testing innovative applications in energy, coatings, and electronics.
Key Features
- High purity (99+%) and stable alpha-phase structure ensure reliability in high-performance applications.
- Excellent mechanical, thermal, and dielectric properties make it ideal for ceramics, coatings, and electronics.
- Versatile material for industrial, biomedical, and research purposes.
