Tungsten Nanopowder (W, 99.95%, 40-60nm)

Technical Specifications

1. Product Name: Tungsten Nanopowder
   • Chemical Formula: W
   • CAS Number: 7440-33-7
2. Purity
   • Grade: 99.95% (ultra-high purity)
   • Impurities: ≤0.05% (trace levels of oxides, other metals, or non-metallic elements)
3. Particle Size
   • Range: 40–60 nm
   • Particle Size Distribution: Verified via SEM (Scanning Electron Microscopy) or TEM (Transmission Electron Microscopy)
4. Morphology
   • Shape: Near-spherical or irregular particles depending on the synthesis method
   • Surface Area: High due to nanoscale dimensions, enhancing reactivity
5. Crystal Structure
   • Phase: Body-Centered Cubic (bcc)
   • Stability: Stable under standard conditions, retains excellent mechanical properties at high temperatures
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 high resistance to corrosion
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; prolonged exposure to air can cause surface oxidation
8. Safety and Handling
   • Hazards:
     • Tungsten nanopowder is flammable in air at high temperatures and can form combustible mixtures.
     • Inhalation of fine tungsten dust may irritate the respiratory system.
   • Recommended Protective Measures:
     • Use PPE (e.g., gloves, goggles, respirators).
     • Handle in an inert or controlled environment to minimize risks.

Applications

1. Aerospace and Defense
   • High-Performance Alloys: Tungsten nanopowder is used in the production of superalloys for aerospace and defense components, offering excellent strength and resistance to high temperatures.
   • Radiation Shielding: Tungsten’s high density makes it ideal for radiation shielding in nuclear and aerospace applications.
2. Energy Applications
   • Nuclear Energy: Used in the production of components for nuclear reactors due to its high melting point and thermal stability.
   • Hydrogen Storage: Studied for its potential to improve hydrogen storage systems.
3. Catalysis
   • Chemical Catalysts: Tungsten nanoparticles serve as catalysts in hydrogenation, dehydrogenation, and isomerization reactions.
   • Environmental Catalysis: Effective in pollutant degradation and waste treatment processes.
4. Additive Manufacturing and 3D Printing
   • Metal Powders: Tungsten nanopowder is used in additive manufacturing for creating components with exceptional thermal and mechanical properties.
5. Coatings and Surface Engineering
   • Protective Coatings: Applied as wear-resistant, corrosion-resistant, and high-temperature coatings on industrial tools and machinery.
   • Thermal Barrier Coatings: Enhances the thermal stability of components in extreme environments.
6. Electronics
   • Conductive Materials: Used in the production of conductive inks and coatings for microelectronics.
   • Electrodes: Tungsten nanopowder is used for electrodes in various electronic and electrochemical applications.
7. Biomedical Applications
   • Medical Imaging: Tungsten’s high density makes it suitable for imaging applications like X-ray shielding.
   • Biomedical Devices: Investigated for use in specialized implants and devices.
8. Nanocomposites
   • Enhanced Materials: Tungsten nanoparticles improve the mechanical, thermal, and electrical properties of composite materials.
   • Lightweight Components: Used in aerospace and automotive applications for creating high-strength, lightweight composites.
9. Research and Development
   • Material Science: Extensively used in research to study tungsten’s unique properties at the nanoscale.
   • Prototype Development: Useful for developing and testing next-generation technologies in energy and manufacturing.

Key Features

• Exceptional thermal and mechanical stability, making it ideal for extreme environments.
• High purity (99.95%) ensures reliability for aerospace, energy, and electronics applications.
• Versatile use in catalysis, coatings, additive manufacturing, and radiation shielding.