Tungsten Sulfide Powder (WS2, Purity: 99.9%,APS: 5-10µm)

Tungsten Sulfide Powder

Tungsten sulfide powder is a compound made up of tungsten and sulfur  typically in the form of tungsten disulfide (WS₂), which is the most common stoichiometric variant. It is a member of the transition metal dichalcogenides (TMDs), a group of materials that exhibit unique properties, including layered structures, high thermal stability, and excellent lubrication properties. Tungsten sulfide powder is typically dark gray or black in appearance and can be synthesized in both nano and micro forms.

Tungsten sulfide is especially notable for its solid lubricating properties and excellent performance under extreme conditions such as high temperatures, high pressures, and vacuum environments. This material has been researched and applied in industries ranging from electronics to aerospace to energy storage.

Key Properties

Appearance: Tungsten sulfide powder is typically dark gray to black in color and can vary in particle size from nano-sized to micron-sized.

Structure: It exhibits a layered hexagonal crystal structure, similar to graphite, which allows for easy exfoliation into thin sheets. This structure contributes to its lubricating properties.

Lubricity: Tungsten sulfide powder is well-known for its low friction coefficient, making it a superior solid lubricant for applications involving high-speed, high-temperature, and high-pressure environments.

Thermal Stability: It exhibits excellent thermal stability and can withstand temperatures exceeding 600°C in air and much higher in inert environments without degradation.

Electrical Conductivity: While tungsten sulfide is a semiconductor, it still retains good electrical conductivity, making it suitable for use in electronic devices.

Chemical Stability: Tungsten sulfide is chemically stable under normal conditions, resistant to oxidation, and shows good corrosion resistance.