Overview of -325 mesh Niobium Powder CAS 7440-03-1
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 -325 mesh Niobium Powder CAS 7440-03-1
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High Melting Point: Niobium carbide has a melting point of approximately 3,400 to 3,500°C, making it suitable for high-temperature applications.
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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.
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Thermal Conductivity: It exhibits good thermal conductivity, facilitating heat dissipation and making it useful in high-heat-load applications.
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Chemical Stability: Niobium carbide is resistant to corrosion from most acids and alkalis, excluding hydrofluoric acid, and is stable under oxidizing conditions.
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Electrical Conductivity: Although a ceramic, niobium carbide demonstrates moderate electrical conductivity, contributing to its use in some electronic applications.
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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.
(-325 mesh Niobium Powder CAS 7440-03-1)
Parameters of -325 mesh Niobium Powder CAS 7440-03-1
The powder with the molecular formula Niobium has an atomic number of 28 and an atomic mass of approximately 96.96 g/mol. It is a strong magnetic material with high magnetic strength and permeability, making it useful in various applications such as magnets, aerospace engineering, and energy storage. The CAS (Comitéà Accord sur les Preparations et Définitions des Identificants) number for Niobium powder with the molecular formula Niobium is 7440-03-1. This number represents the unique identifier assigned to this particular product by the relevant regulatory agencies.
(-325 mesh Niobium Powder CAS 7440-03-1)
Applications of -325 mesh Niobium Powder CAS 7440-03-1
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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.
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Wear-Resistant Coatings: As a coating on metal parts exposed to severe wear conditions, such as drill bits, mining equipment, and pump components.
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Heat Shields and Furnace Components: In high-temperature furnaces and kilns due to its excellent thermal stability and resistance to oxidation.
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Electrode Materials: In some specialized electrodes for electrical discharge machining (EDM) and electrochemical processes.
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Cemented Carbides: As a component in cemented carbide composites, enhancing their toughness and wear resistance.
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FAQs of -325 mesh Niobium Powder CAS 7440-03-1
Q: How is -325 mesh Niobium Powder CAS 7440-03-1 produced?
A: -325 mesh Niobium Powder CAS 7440-03-1 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 -325 mesh Niobium Powder CAS 7440-03-1 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 -325 mesh Niobium Powder CAS 7440-03-1 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 -325 mesh Niobium Powder CAS 7440-03-1 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 -325 mesh Niobium Powder CAS 7440-03-1 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.
(-325 mesh Niobium Powder CAS 7440-03-1)
