Tungsten Nanopowder (W, 99.9%, 800 nm)

Technical Specifications

1. Product Name: Tungsten Nanopowder
   • Chemical Formula: W
   • CAS Number: 7440-33-7
2. Purity
   • Grade: 99.9% (high purity)
   • Impurities: ≤0.1% (trace levels of oxides, metals, or other non-metallic elements)
3. Particle Size
   • Range: ~800 nm (submicron range)
   • Particle Size Distribution: Verified using SEM (Scanning Electron Microscopy) or TEM (Transmission Electron Microscopy)
4. Morphology
   • Shape: Irregular to near-spherical particles, depending on the production method
   • Surface Area: Lower than smaller nanoparticles, though still higher than bulk tungsten
5. Crystal Structure
   • Phase: Body-Centered Cubic (bcc)
   • Stability: Stable under extreme temperature and mechanical conditions
6. Physical and Chemical Properties
   • Color: Gray metallic powder
   • Density: ~19.25 g/cm³ (bulk density is lower due to particle agglomeration)
   • Melting Point: ~3,422 °C
   • Boiling Point: ~5,555 °C
   • Thermal Conductivity: ~173 W/m·K
   • Electrical Conductivity: Excellent conductivity with corrosion resistance
7. Packaging and Storage
   • Standard Packaging: Sealed under inert gas (e.g., argon) or vacuum-sealed to prevent oxidation
   • Storage Conditions: Store in a cool, dry environment; protect from air, moisture, and contaminants
   • Shelf Life: Stable when properly stored; surface oxidation may occur with prolonged exposure to air
8. Safety and Handling
   • Hazards:
     • Tungsten powder is combustible in fine form and may ignite at high temperatures in air.
     • Dust inhalation may cause respiratory irritation.
   • Recommended Protective Measures:
     • Use PPE (e.g., gloves, goggles, respirators).
     • Handle in a controlled environment to minimize risks of oxidation or combustion.

Applications

1. Aerospace and Defense
   • Superalloys: Tungsten nanopowder is used in high-performance alloys for aerospace and defense applications, providing excellent strength and resistance to high temperatures.
   • Radiation Shielding: Its high density makes it ideal for radiation shields in nuclear reactors and aerospace equipment.
2. Energy Applications
   • Nuclear Energy: Tungsten components are used in nuclear reactor applications due to their stability under extreme conditions.
   • Hydrogen Storage: Explored for hydrogen storage systems due to tungsten’s ability to form hydrides.
3. Catalysis
   • Industrial Catalysts: Effective in hydrogenation, isomerization, and dehydrogenation reactions.
   • Environmental Applications: Used in pollutant removal and chemical waste treatment systems.
4. Coatings and Surface Engineering
   • Thermal Barrier Coatings: Tungsten nanopowder is applied to high-temperature components such as turbines and engines to enhance durability.
   • Wear-Resistant Coatings: Improves the lifespan of industrial tools and machinery.
5. Additive Manufacturing and 3D Printing
   • Metal Powders: Tungsten nanopowder is suitable for additive manufacturing processes to create high-performance components for industrial and aerospace use.
6. Electronics
   • Conductive Materials: Tungsten nanoparticles are used in conductive inks, coatings, and microelectronic components.
   • Electrodes: Employed in electrodes for batteries, fuel cells, and electrochemical systems.
7. Nanocomposites
   • Enhanced Materials: Tungsten nanoparticles improve the thermal, electrical, and mechanical properties of composite materials.
   • Lightweight Components: Used in automotive and aerospace industries for high-strength, lightweight composites.
8. Biomedical Applications
   • Imaging: Tungsten’s high density makes it suitable for X-ray shielding and other medical imaging applications.
   • Biomedical Devices: Investigated for use in specialized implants and prosthetic components.
9. Research and Development
   • Material Science: Tungsten nanopowder is used in experimental studies to develop advanced materials for energy, electronics, and coatings.
   • Prototyping: Ideal for creating prototypes in high-performance applications.

Key Features

• High purity (99.9%) and submicron size (~800 nm) make it versatile for applications in energy, aerospace, and catalysis.
• Excellent thermal stability and corrosion resistance ensure durability in extreme environments.
• Suitable for coatings, additive manufacturing, and composite materials across various industries.