Plasma-Spheroidized Niobium Powder (Niobium Spheres)
Spherical Niobium Powder, also known as Niobium Spheres, with a particle size of 15-45 um, or 45-106 um, and low oxygen level, is widely used for powder metallurgy, metal injection molding, additive manufacturing, and biomedical applications.
Princeton Powder is a leading supplier of Plasma-Spheroidized Niobium Powder. Niobium powders including Niobium Carbide Powder, Niobium Oxide Nb2O5 Ceramic Powder, and Niobium Nitride NbN Powder are for sale in bulk.
Formula | Niobium Nb |
CAS Number | 7440-03-1 |
Purity | 99.9% min |
Synonyms | Nb spherical particles, niobium Spherical particles, niobium spherical powders, niobium metal spherical powder |
Particle Sizes | 325 mesh, 15-45 um, 53-106 um or be customized |
Appearance | Black grey powder |
Melting Point | 2468°C |
Boiling Point: | 4742°C |
Apparent Density | >4.5 g/cm3 |
Tap Density | >5.5 g/cm3 |
Description of Spherical Niobium Powder
Spherical niobium powder distinguishes itself from other forms of niobium due to its uniform spherical morphology, which not only enhances flowability and packing density in applications such as additive manufacturing and powder metallurgy but also provides a higher specific surface area advantageous for catalytic reactions, enables precise control over purity and particle size distribution critical for uniform alloying processes, improves handling by reducing powder clumping and ensuring consistency in automated manufacturing, and supports a wide range of advanced applications including aerospace, electronics, and energy sectors where its unique physical characteristics contribute to the development of high-performance materials and technologies.
Princeton Powder is a leading supplier of Spherical Nb powder. We specialize in a comprehensive range of spherical powder products and possess extensive expertise in additive manufacturing (3D printing) industry. With our expertise, we are confident in supporting your projects effectively and provide you with reliable solutions.
Spherical Niobium Powder Chemical Composition
Chemical Composition by ICP-AES | Wt % |
Nb | ≥ 99.9 |
Ta | <0.05 |
Cu | <0.001 |
Al | <0.002 |
W | <0.005 |
Mn | <0.002 |
Mo | <0.003 |
Si | <0.002 |
Fe | <0.005 |
Cr | <0.002 |
Ni | <0.002 |
Ti | <0.002 |
Gas Impurities | |
O | ≤0.06 |
N | ≤0.003 |
C | ≤0.03 |
P | <0.002 |
Spherical Niobium Powder Particle Size distribution
0-15μm, 15-53μm, 45-105μm, 45-150μm. (Various particle sizes can be customized)

Benefits/Application of Spherical Niobium Powder
Spherical niobium powder finds application in various high-tech industries due to its unique properties.
- Additive Manufacturing: for 3D printing high-performance parts.
- Catalysis: as a catalyst or catalyst support.
- Advanced Ceramics: for sintering and composite materials.
- Alloys: to enhance properties like strength and corrosion resistance.
- Superconductors: in applications such as MRI machines and quantum computing.
- Battery Technology: for improved electrode performance.
Spherical Niobium Powder
Development of niobium powder injection molding: Part I. Feedstock and injection molding
This article details a systematical approach to develop feedstock for powder injection molding of niobium. It has been proven that powder injection molding is a viable forming technique for pure niobium.
FAQ Spherical Niobium Powder Reference
What is Spherical Niobium Powder?
Spherical niobium powder is a high-purity, finely divided form of niobium (Nb) metal with >95% sphericity, optimized for additive manufacturing (AM), thermal spray, and powder metallurgy. It is produced via plasma spheroidization or gas atomization for uniform flowability and packing density.
What Applications Use Spherical Nb Powder?
Additive Manufacturing: LPBF (Laser Powder Bed Fusion), EBM (Electron Beam Melting).
Aerospace: Rocket nozzles, superconducting cavities.
Medical: MRI-compatible implants.
Energy: Superconductor wires, nuclear reactors.