Technical Specifications
- Product Name: Aluminum Oxide Nanopowder
- Chemical Formula: Al₂O₃ (Aluminum Oxide)
- CAS Number: 1344-28-1
- Purity
- Grade: 99.9% (ultra-high purity)
- Impurities: ≤0.1% (trace levels of other oxides or non-metallic elements)
- Particle Size
- Average Size: ~135 nm
- Particle Size Distribution: Confirmed via SEM (Scanning Electron Microscopy) or TEM (Transmission Electron Microscopy)
- Crystal Structure
- Phase: Alpha-phase (corundum structure, the most thermodynamically stable and dense phase of Al₂O₃)
- Morphology
- Shape: Near-spherical or irregular particles depending on the production process
- Surface Area: Moderate, with nanoscale size enhancing mechanical and chemical 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, ~30 W/m·K
- Electrical Properties: Excellent insulator with superior dielectric strength
- Packaging and Storage
- Standard Packaging: Sealed in airtight, moisture-resistant containers to prevent contamination
- Storage Conditions: Store in a cool, dry place; avoid prolonged exposure to moisture and acidic or basic environments
- Shelf Life: Stable under proper storage conditions
- Safety and Handling
- Hazards:
- Aluminum oxide dust may irritate the respiratory system and eyes.
- Fine powders may generate airborne particles during handling.
- Recommended Protective Measures:
- Use PPE (e.g., gloves, goggles, and dust masks).
- Ensure proper ventilation and minimize airborne dust exposure.
- Hazards:
Applications
- Advanced Ceramics and Refractories
- Technical Ceramics: Used in producing high-strength and wear-resistant ceramic components.
- Refractory Materials: Ideal for lining furnaces and kilns due to its high melting point and thermal stability.
- Coatings and Surface Treatments
- Thermal Barrier Coatings: Used in aerospace and industrial applications to protect surfaces exposed to high temperatures.
- Wear-Resistant Coatings: Enhances durability and longevity in machinery and tools.
- Electronics and Insulating Materials
- Dielectrics: Applied in microelectronics as an insulating layer for capacitors and semiconductors.
- Thermal Management: Used in thermal interface materials (TIMs) for heat dissipation in electronic devices.
- Polishing and Abrasives
- Precision Polishing: Utilized for polishing optics, semiconductors, and metals due to its hardness and fine particle size.
- Abrasives: Incorporated into grinding wheels and cutting tools for industrial machining.
- Catalysis
- Catalyst Support: Acts as a stable and inert support for various industrial catalysts in petrochemical and environmental applications.
- Adsorbent: Its surface area and chemical stability make it effective for gas and liquid adsorption.
- Energy Applications
- Batteries: Used in lithium-ion battery separators to improve thermal stability and safety.
- Fuel Cells: Provides thermal and chemical stability in solid oxide fuel cells (SOFCs).
- Nanocomposites
- Reinforcement Additive: Improves mechanical, thermal, and electrical properties of polymer, ceramic, and metal composites.
- Lightweight Materials: Ideal for aerospace and automotive industries due to its strength-to-weight advantages.
- Biomedical Applications
- Implants: Biocompatibility makes it suitable for orthopedic and dental implants.
- Drug Delivery: Investigated as a carrier for targeted drug delivery systems.
- Research and Development
- Material Science: Used in studies exploring nanoscale properties of aluminum oxide.
- Prototype Testing: Applied in experimental systems for coatings, electronics, and energy storage.
Key Features
- High purity (99.9%) and stable alpha-phase ensure excellent thermal, mechanical, and chemical properties.
- Ideal for high-performance applications in ceramics, electronics, and coatings.
- Versatile use in energy, catalysis, and biomedical research.
