Niobium Carbide Powder (NbC Powder)
Princeton Powder is a worldwide producer of pure Niobium Carbide micron powder, offering spherical particles at a competitive price in the United States. Our Niobium Carbide powder has low oxygen percentage, which is widely used in super high-temperature and corrosion-resistant working environments.
We supply Niobium and Niobium alloy powders including Spherical Niobium Powder, C103 Niobium Hafnium Alloy Spherical Powder, and Spherical niobium-based alloy Nb521 Powder.
Formula | Niobium Carbide Powder |
CAS Number | 12069-94-2 |
Purity | 99.5% min |
Synonyms | Niobium Carbide spherical powders, Niobium Carbide nano Powder, Niobium Carbide Powder, Niobium Carbide microns powder |
Particle Sizes | 325 mesh or be customized |
Appearance | Black Color |
Melting Point | 3490 °C |
Boiling Point: | 4300 °C |
Density | 7.9 g/cm3 |
Oxygen | <0.5% |
Description of Niobium Carbide Micron Powder
Niobium Carbide (NbC) is a tough ceramic material valued for its high melting point, good heat conductivity, and resistance to wear and corrosion. It’s well-suited for use in harsh environments, particularly those involving high temperatures, abrasion, or corrosive conditions, such as cutting tools and superalloys. NbC is generally made through a process called carbothermal reduction, where niobium oxide and carbon are heated together. Its fine, uniform powder is ideal for demanding industrial applications. NbC is widely used in sectors like aerospace, metalworking, and electronics, where strength and heat tolerance are critical.
Chemical Composition of Spherical Niobium Carbide Powder
Product | Particle Size(μm) | Chemical Composition (%) | |||||||||||
Total Carbon | Free Carbon | Impurity (%max) | |||||||||||
Ta | W | Ti | Si | Na | Fe | O | N | K | Ca | ||||
NbC-1 | 0.8-1.0 | 11-11.4 | ≤0.30 | 0.20 | 0.10 | 0.02 | 0.01 | 0.01 | 0.05 | 0.50 | 0.20 | 0.01 | 0.01 |
NbC-2 | 1.0-1.5 | 11-11.4 | ≤0.30 | 0.20 | 0.10 | 0.02 | 0.01 | 0.01 | 0.05 | 0.50 | 0.20 | 0.01 | 0.01 |
NbC-3 | 1.5-2.0 | 11-11.4 | ≤0.30 | 0.20 | 0.10 | 0.02 | 0.01 | 0.01 | 0.05 | 0.50 | 0.20 | 0.01 | 0.01 |
Particle Size
-325 mesh or 1-3 um (Various particle sizes can be customized)
Application
Niobium Carbide (NbC) powder is used in cutting tools, wear-resistant coatings, and hard metals for enhanced hardness and durability. It is an important additive in cermets and superalloys for improved toughness and thermal resistance in high-temperature environments. Additionally, NbC is utilized in electronics where thermal stability is essential.
Reference
Preparation of niobium carbide powder by electrochemical reduction in molten salt
- The niobium carbide powder was prepared via electrochemical reduction of the mixture of Nb2O5 and carbon in molten CaCl2–NaCl. The reaction pathway from the sintered precursor to the final product has been investigated. The effect of the working temperature on the reduction of the Nb2O5/C composite precursor was considered. The role of carbon during the electrochemical reduction of the composite pellet was discussed.
Tantalum carbides (TaC), niobium carbides (NbC), and their mixed carbides (Ta,Nb)C enhance the performance of carbide cutting tools. These carbides significantly improve oxidation resistance, hot hardness, thermal stability, and wear resistance in tools used for steel processing.
Niobium carbide (NbC and Nb2C) is an extremely hard refractory ceramic, commonly used in cutting tool bits. Typically processed through sintering, it is often added to cemented carbides as a grain growth inhibitor.
Niobium carbide powders are used in parts and coatings exposed to fretting, abrasion, cavitation, and particle erosion, such as cutting, grinding, and agricultural tools, as well as hard-face coatings. Additionally, they serve as grain growth inhibitors in steel production.