Niobium Silicide NbSi2 Powder
Formula | NbSi2 |
Synonyms | Niobium Silicide |
Appearance | Black Powder |
Particle Size | -325 mesh, can be customized upon request |
Melting Point | 1950 °C |
Density | 5.7 g/cm 3 |
Purity | 99% min |
CAS Number | 12034-80-9 |
Description of Niobium Silicide Powder
Niobium Silicide (NbSi2) Powder is a refractory intermetallic compound composed of niobium and silicon. It is characterized by a high melting point, good thermal and electrical conductivity, and excellent resistance to oxidation and corrosion at high temperatures, making it suitable for various high-temperature applications.
Niobium silicide powder is a critical material for high-performance applications that require a combination of thermal stability, oxidation resistance, and mechanical strength, making it valuable in aerospace, power generation, electronics, and industrial sectors.
Princeton Powder is a leading supplier of Niobium Silicide (NbSi2) Powder. Bulk Niobium Silicide fine powder is for sale.
Chemical Composition
| Product | Purity (%) | Chemical Composition (%) | Particle Size |
|---|---|---|---|
| NbSi2 | >99 | Nb: >37.5 Si: >61.5 C: 0.1 P: 0.02 Fe: 0.15 S: 0.03 | -20 mesh, -325 mesh, or customized |
Applications
- Aerospace: Used in components such as turbine blades, jet engine parts, and rocket nozzles that require high-temperature strength and oxidation resistance.
- Protective Coatings: Applied as a coating on metal surfaces to improve oxidation resistance and durability at elevated temperatures.
- Power Generation: Employed in parts for gas turbines and other high-temperature power generation equipment.
- Microelectronics: Utilized in the semiconductor industry for thin films and electronic components due to its good electrical conductivity and stability.
- Wear-Resistant Materials: Incorporated into materials that need to withstand high wear and abrasion, such as cutting tools and industrial equipment.
- Composites: Added to composites to enhance their mechanical properties and resistance to thermal degradation.
Niobium Silicide Powder Reference
NbSi2 coating on niobium using molten salt
- For obtaining better oxidation resistance of niobium in air, a niobium silicide was non-electrolytically deposited onto niobium from the molten salt, where a disproportional reaction occurs between Na2SiF6, SiO2, and Si. A single phase of NbSi2 was formed with a homogeneous thickness of about 10 μm above 1073 K. The oxidation resistance of pure niobium with this coating layer was improved. During the oxidation at the high temperatures, Nb5Si3 was formed at the interface between the Nb substrate and the NbSi2 layer. Due to this intermediate layer formation, the oxidation resistance became better than for pure NbSi2.