Vanadium Disilicide Powder VSi2 (Vanadium Silicide Powder)
Princeton Powder is a leading supplier of Vanadium Disilicide microns powder. Vanadium Disilicide particle size affects the dispersion, flowability, and bonding with matrix materials. Smaller particles are beneficial for creating dense, uniform coatings, making them ideal for thermal barrier coatings and semiconductor applications. High purity VSi₂ powder exhibiting excellent thermal stability and Electrical Conductivity is for sale in the United States.
Vanadium powders including Vanadium Carbide Powder, Vanadium Nitride Powder, and Vanadium Boride (VB2) Powder are available.
Formula | Vanadium Disilicide, VSi2 |
CAS Number | 12039-87-1 |
Purity | 99.0% min |
Synonyms | Vanadium Disilicide powder, Vanadium Disilicide refractory powder, Vanadium Disilicide thermal spray powder, Vanadium Disilicide ceramic Powder |
Particle Sizes | 325 mesh or be customized |
Shape | Spherical or irregular |
Melting Point | 1677 °C |
Appearance | Gray Powder |
Density | 4.42 g/cm 3 |
Description of Vanadium Disilicide Powder
Vanadium disilicide (VSi₂) powder is an advanced ceramic material that belongs to the family of metal silicides and is a refractory metal compound. VSi₂ is highly valued for its unique combination of high thermal stability, electrical conductivity, and oxidation resistance, which make it suitable for a range of high-performance applications in extreme environments.
Manufacturing method of Vanadium Disilicide Powder
Vanadium disilicide powder can be produced by several methods. In the Solid-State Reaction method, vanadium and silicon powders are mixed and heated above 1200°C in an inert atmosphere. Self-Propagating High-Temperature Synthesis (SHS) uses a small ignition to trigger a rapid exothermic reaction between the powders, producing VSi₂. Mechanical Alloying involves grinding the powders together in a high-energy ball mill, creating VSi₂ through repeated impacts.Chemical Vapor Deposition (CVD) uses gaseous precursors of vanadium and silicon in a high-temperature chamber to form thin films or fine powder, ideal for high-purity coatings.
Main properties of Vanadium Disilicide Powder
Vanadium disilicide powder has a high melting point (around 1,550°C), providing thermal stability for high-temperature applications. It also exhibits strong oxidation resistance, ideal for harsh environments and extended high-temperature exposure. VSi₂ has good electrical conductivity compared to other ceramics, valuable in electronic and semiconductor uses. Additionally, it provides high mechanical strength, enhancing the structural integrity of composite materials at elevated temperatures.
Chemical Composition of Vanadium Disilicide Powder
Product | Purity (%) | Chemical Composition (%) | ||||||
V | Si | C | P | Fe | S | Ni | ||
VSi2 | >99 | >46.1 | Balance | 0.01 | 0.02 | 0.15 | 0.01 | 0.05 |
Particle Size | 325 mesh or customized. | |||||||
Application of Vanadium Disilicide Powder
High-Temperature Superalloys: VSi₂ is used as an additive in nickel-based superalloys, commonly applied in aerospace turbine engines.
Refractory Ceramics: VSi₂ is incorporated into refractory ceramics and bricks used in high-temperature furnaces for steel, glass, and aluminum production.
Semiconductor Devices: In semiconductor manufacturing, VSi₂ is used as a contact material for silicon-based devices like transistors and integrated circuits.
Thermal Barrier Coatings: VSi₂ powder is used in thermal barrier coatings applied to gas turbine components, such as blades and combustion chambers.
Vanadium Disilicide Powder Scholar Articles
Synthesis and thermal stability of nano-crystalline vanadium disilicide
Abstract: Nano-crystalline vanadium disilicide was successfully synthesized using vanadium tetrachloride and silicon as starting materials via reduction–silication route at 650 °C in the molten salt solution of magnesium chloride and sodium chloride in an autoclave. X-ray powder diffraction patterns indicated that the product was hexagonal VSi2 (a=4.572 Å, c=6.372 Å). Transmission electron microscopy images showed that the particle size of the product was in the range of 40–60 nm in diameter. There was a strong absorption peak at 271 nm in the UV-Vis absorption spectra. The oxidation of nano-crystalline VSi2 began to proceed at the temperature of 400 °C in air. But the product had high thermal oxidation stability below 1000 °C. It can be used as an antioxidation coating material.