Blogs, nanopowder   0   12 March 2025

What is Tungsten Disulfide (WS₂) Micron Powder?

Tungsten Disulfide (WS₂) Micron Powder is a high-performance solid lubricant and advanced nanomaterial known for its low friction coefficient, high thermal stability, and excellent wear resistance. It is widely used in lubricants, coatings, aerospace, automotive, electronics, and nanotechnology applications due to its unique layered structure and exceptional mechanical properties.

Chemical Properties of Tungsten Disulfide (WS₂) Micron Powder

  • Chemical Formula: WS₂
  • Molecular Weight: 247.97 g/mol
  • Density: 7.5 g/cm³
  • Melting Point: ~1,250°C
  • Boiling Point: Decomposes at high temperatures
  • Friction Coefficient: ~0.03 (extremely low)
  • Thermal Conductivity: ~32 W/m·K
  • Band Gap: ~1.35 – 2.1 eV (structure-dependent)
  • Solubility: Insoluble in water, soluble in strong acids
  • CAS Number: 12138-09-9

Applications of Tungsten Disulfide (WS₂) Micron Powder

  1. Lubricants & Anti-Friction Coatings

    • Used in high-performance lubricants, greases, and oils for aerospace, automotive, and industrial machinery.
    • Reduces friction, wear, and heat generation in gears, bearings, and moving parts.

  2. Aerospace & Defense Industry

    • Applied in spacecraft components, satellites, and high-altitude vehicles due to its vacuum stability and extreme temperature resistance.
    • Used as a dry lubricant for engine components and moving mechanical parts.

  3. Automotive & Industrial Engineering

    • Improves engine efficiency and fuel economy by reducing metal-on-metal wear.
    • Used in high-load, high-temperature applications such as brake pads, piston rings, and transmission systems.

  4. Electronics & Semiconductors

    • Applied in thin-film transistors (TFTs) and flexible electronic devices due to its semiconducting properties.
    • Used in electronic coatings and microelectromechanical systems (MEMS).

  5. Nanotechnology & 2D Materials Research

    • Used in quantum dots, nanocomposites, and nanodevices for advanced material applications.
    • Studied as an alternative to graphene and molybdenum disulfide (MoS₂) in next-generation electronics.

  6. Energy Storage & Batteries

    • Applied in lithium-ion batteries (LIBs), supercapacitors, and hydrogen evolution reactions (HER).
    • Enhances charge storage capacity and electrochemical stability.

  7. Chemical Catalysis & Industrial Processing

    • Used as a catalyst in hydrodesulfurization (HDS) and petrochemical refining.
    • Enhances chemical reaction efficiency and environmental purification.

Tungsten Disulfide (WS₂) Micron Powder Prices

Pricing varies based on purity, particle size, and industrial application.

  • Industrial Grade (99% Purity): $50 – $200 per kg
  • High Purity (99.9% – 99.99% for Lubricants & Coatings): $500 – $1,500 per kg
  • Ultra-High Purity (99.999% for Electronics & Research Applications): $2,000 – $5,000 per kg

Prices fluctuate based on global tungsten supply, refining costs, and demand from high-tech industries.

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