Niobium Powder (Nb Powder) Description
Niobium (chemical symbol Nb, atomic number 41) is a transition metal element. Pure niobium is a lustrous grey metal. High-purity niobium is highly ductile, and its ductility reduces as the level of impurities increases. Niobium possesses a very low thermal neutron capture cross-section.
Niobium Powder (Nb Powder) Specification
Chemical Composition
|
Element
|
Nb
|
Ta
|
Hf
|
N
|
C
|
O
|
H
|
|
%
|
≥99
|
0.5
|
0.01
|
0.03
|
0.05
|
0.1-0.2
|
0.0015
|
Niobium Powder (Nb Powder) Properties
• High Melting Point: Niobium has a melting point of 2,468°C (4,474°F), making it suitable for high-temperature applications such as aerospace and electronics.
• Corrosion Resistance: Niobium exhibits excellent corrosion resistance, especially in acidic environments.
• Superconductivity: Niobium is a key component in the production of superconducting materials. Niobium-titanium (Nb-Ti) and niobium-tin (Nb3Sn) alloys are commonly used in superconducting magnets for MRI machines, particle accelerators, and other advanced technologies.
• Ductility and Malleability: Niobium is both ductile and malleable, allowing it to be easily shaped and processed.
• Low Density: With a density of approximately 8.57 g/cm³, niobium is relatively lightweight compared to other refractory metals.
• High Strength: Niobium and its alloys exhibit high strength and toughness
• Biocompatibility: Niobium is biocompatible, making it suitable for medical implants and devices, such as pacemakers and prosthetics.
Niobium Powder (Nb Powder) Applications
- High-temperature components, especially for the aerospace industry
- Alloy additions, including some for superconducting materials. Adding 0.001% to 0.1% niobium to steel is sufficient to alter its mechanical properties.
- Production of special welding rod
- Refractory materials
- Plasma spray coatings
- Filters
- Certain corrosion-resistant applications
- Niobium serves as a sealing material for the arc tube in high-pressure sodium lamps because its coefficient of thermal expansion closely matches that of sintered alumina arc lamp ceramics.
Niobium Powder (Nb Powder) Packing
Niobium Powder (Nb Powder) is packed with plastic bottles in cartons.
Why Do Tantalum and Niobium Have Similar Properties?
Tantalum (Ta) and niobium (Nb) have nearly identical atomic radii and the same +5 oxidation state, leading to similar chemical behavior. Both belong to Group 5 in the periodic table, resulting in comparable corrosion resistance and high melting points (~2,468°C for Nb, ~3,017°C for Ta).
read more: The Similarities and Differences Between Tantalum and Niobium
