Niobium Carbide

CAS 12069-94-2 Niobium carbide NbC powder

Niobium Carbide represents a class of advanced ceramic materials that merge exceptional hardness, thermal stability, and electrical conductivity into a robust package suited for demanding environments.

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Overview of CAS 12069-94-2 Niobium carbide NbC powder

Niobium Carbide (NbC) is a refractory ceramic compound composed of niobium and carbon elements, known for its exceptional hardness, high melting point, and excellent thermal and electrical conductivity. It belongs to the family of transition metal carbides, which are valued for their remarkable mechanical properties and resistance to extreme environments. Niobium carbide is a dark gray, extremely hard material that finds application in areas requiring wear resistance, high-temperature stability, and corrosion resistance.

Features of CAS 12069-94-2 Niobium carbide NbC powder

  1. High Melting Point: Niobium carbide has a melting point of approximately 3,400 to 3,500°C, making it suitable for high-temperature applications.

  2. Hardness and Wear Resistance: With a Vickers hardness in the range of 2000-2500 Hv, NbC is one of the hardest materials, providing excellent wear resistance in abrasive environments.

  3. Thermal Conductivity: It exhibits good thermal conductivity, facilitating heat dissipation and making it useful in high-heat-load applications.

  4. Chemical Stability: Niobium carbide is resistant to corrosion from most acids and alkalis, excluding hydrofluoric acid, and is stable under oxidizing conditions.

  5. Electrical Conductivity: Although a ceramic, niobium carbide demonstrates moderate electrical conductivity, contributing to its use in some electronic applications.

  6. Density: Despite its hardness, niobium carbide has a relatively high density of about 8.53 g/cm³, adding to its mass efficiency in wear-resistant coatings.

CAS 12069-94-2 Niobium carbide NbC powder

(CAS 12069-94-2 Niobium carbide NbC powder)

Parameters of CAS 12069-94-2 Niobium carbide NbC powder

CAS 12069-94-2 Niobium carbide NbC powder is a type of ceramic material that contains Niobium and carbide, which provides strength, hardness, and corrosion resistance.
The specific properties of the Niobium carbide powders can vary depending on their particle size, composition, and processing conditions. However, generally speaking, Niobium carbide powders exhibit good mechanical properties such as high Young’s modulus, high density, and good thermal stability.
In terms of composition, Niobium carbide powders can be composed of different ratios of Niobium and carbide, and the optimal composition will depend on the specific application. For example, in some applications, the Niobium content may be increased to improve the toughness and wear resistance of the powder.
Overall, Niobium carbide powders offer a variety of useful properties for a range of applications, including aerospace, automotive, and energy.

CAS 12069-94-2 Niobium carbide NbC powder

(CAS 12069-94-2 Niobium carbide NbC powder)

Applications of CAS 12069-94-2 Niobium carbide NbC powder

  1. Cutting Tools and Tool Inserts: In the manufacturing of cutting and machining tools due to its wear resistance and ability to maintain sharp edges at high temperatures.

  2. Wear-Resistant Coatings: As a coating on metal parts exposed to severe wear conditions, such as drill bits, mining equipment, and pump components.

  3. Heat Shields and Furnace Components: In high-temperature furnaces and kilns due to its excellent thermal stability and resistance to oxidation.

  4. Electrode Materials: In some specialized electrodes for electrical discharge machining (EDM) and electrochemical processes.

  5. Cemented Carbides: As a component in cemented carbide composites, enhancing their toughness and wear resistance.

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FAQs of CAS 12069-94-2 Niobium carbide NbC powder

Q: How is CAS 12069-94-2 Niobium carbide NbC powder produced?
A: CAS 12069-94-2 Niobium carbide NbC powder is typically synthesized through the carburization of niobium metal powder or oxide at high temperatures in a reducing atmosphere or via direct reaction of niobium with carbon.

Q: Can CAS 12069-94-2 Niobium carbide NbC powder be machined?
A: Due to its extreme hardness, machining niobium carbide directly is challenging. It is often fabricated using powder metallurgy techniques, sintering, or applied as a coating through processes like chemical vapor deposition (CVD) or physical vapor deposition (PVD).

Q: Is CAS 12069-94-2 Niobium carbide NbC powder biocompatible?
A: While not extensively studied for biomedical applications, niobium-based materials generally exhibit good biocompatibility. Specific studies would be required to assess NbC’s suitability for biomedical implants.

Q: How does CAS 12069-94-2 Niobium carbide NbC powder compare to tungsten carbide in terms of hardness?
A: Both are hard materials, but tungsten carbide (WC) is slightly harder, with a typical Vickers hardness of around 2200 Hv, whereas niobium carbide ranges from 2000 to 2500 Hv.

Q: What are the main advantages of using CAS 12069-94-2 Niobium carbide NbC powder in tooling applications?
A: The advantages include increased tool life due to high hardness and wear resistance, improved heat resistance allowing for faster machining speeds, and retention of cutting edge sharpness even under high loads.

CAS 12069-94-2 Niobium carbide NbC powder

(CAS 12069-94-2 Niobium carbide NbC powder)

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