PRODUCTS
Features
|
CAS Number: |
7440-03-1 |
|
Purity: |
99.9%, 99.95%, 99.99% |
|
Type: |
Cylinder Cone or Boat |
|
Surface: |
Polished |
|
Material Grade: |
R04200-Type 1 -Reactor grade unalloyed niobium R04210-Type 2 -Commercial grade unalloyed niobium |
Product Description
Niobium crucibles are specialized containers made from high-purity niobium, offering exceptional resistance to extreme temperatures, corrosion, and chemical attack. These crucibles are widely used in high-temperature material processing, such as melting, sintering, and evaporation of reactive metals, oxides, and other compounds in vacuum or inert atmospheres.
Niobium's excellent properties make it particularly suitable for applications requiring chemical inertness and high thermal stability, such as in the production of advanced semiconductors, aerospace components, and specialty alloys. With customizable shapes, sizes, and finishes, niobium crucibles ensure precision and reliability for demanding scientific and industrial processes.
Features and Properties
High Melting Point: Withstands temperatures up to 2,468°C.
Corrosion Resistance: Resistant to acids like hydrofluoric acid and alkalis.
Chemical Stability: Maintains inertness in vacuum or inert environments.
Low Thermal Expansion: Reduces risk of cracking under thermal cycling.
High Purity: Ensures minimal contamination in sensitive applications.
Durability: Maintains structural integrity under high stress and thermal loads.
Product Standards
ASTM B393: Standard Specification for Niobium and Niobium Alloy Products
ISO 9001: Ensures manufacturing quality and process control
RoHS Compliance: Free from hazardous substances
Specialized Standards: Available upon request for specific industries
Product Forms
Round Crucibles: Ideal for general laboratory and industrial use.
Conical Crucibles: Designed for precise evaporation processes.
Customized Crucibles: Shapes and sizes tailored for unique applications.
Production Method and Production Equipments
Production Methods:
Vacuum Melting: Produces high-purity niobium ingots.
Forging and Machining: Shapes the material into desired crucible forms.
Polishing and Cleaning: Enhances surface smoothness and removes contaminants.
Production Equipments:
Vacuum Furnaces: For refining and high-purity processing.
CNC Machines: Achieve precision dimensions and shapes.
Polishing Machines: Ensure smooth internal and external surfaces.
Applications and Related Industries
Material Processing: Ideal for melting and evaporation in inert or vacuum environments.
Semiconductor Manufacturing: Used in thin-film deposition and oxide evaporation.
Aerospace: Crucibles for melting high-performance alloys and materials.
Scientific Research: Crucibles for high-temperature and chemical reaction experiments.
Chemical Industry: Handles aggressive chemicals in synthesis and refining processes.
Interesting Facts
High Vacuum Compatibility: Niobium crucibles excel in ultra-high vacuum environments due to their chemical inertness and low outgassing properties.
Unique Applications: Often used for melting reactive materials such as titanium and zirconium.
Space Exploration: Niobium is a key material in developing components for spacecraft due to its high melting point and corrosion resistance.
Recyclable Material: Niobium crucibles can be repurposed, promoting environmental sustainability.
Synonyms
Nb Crucible
High-Purity Niobium Crucible
Corrosion-Resistant Niobium Crucible
Vacuum Niobium Crucible
Health & Safety Information
Handling and Storage:
Store in a clean, dry environment to prevent oxidation.
Avoid mechanical shocks to maintain structural integrity.
Safety Notes:
Wear gloves and goggles when handling to protect against sharp edges.
Ensure adequate ventilation if processing generates dust or particles.
Disposal:
Recycle as niobium retains its properties after reprocessing.
Follow local regulations for metal waste disposal.
Why Choose Us for Niobium Crucibles?
Superior Quality: High-purity niobium with precision engineering.
Tailored Solutions: Customized designs to meet specific requirements.
Reliable Supplier: Consistent product quality and dependable service.
Global Reach: Efficient shipping and support worldwide.
Contact us today to discuss your niobium crucible needs and receive a custom quote!
Chemical Composition
|
Composition% |
|||||||||||||
|
Material |
Main Content |
Impurities (no more than %) |
|||||||||||
|
Nb |
Fe |
Si |
Ni |
W |
Mo |
Ti |
Ta |
O |
C |
H |
N |
||
|
R04200 |
Remaining |
0.004 |
0.004 |
0.002 |
0.005 |
0.005 |
0.002 |
0.05 |
0.012 |
0.0035 |
0.0012 |
0.003 |
|
|
R04210 |
Remaining |
0.01 |
0.01 |
0.005 |
0.02 |
0.01 |
0.004 |
0.07 |
0.015 |
0.0050 |
0.0015 |
0.005 |
|
Mechanical Properties (annealed condition)
|
Grade |
Tensile strength δbpsi (MPa), ≥ |
Yield strength δ0.2, psi (MPa),≥ |
Elongation in 1"/2" gage length, %, ≥ |
|
|
>=0.010 |
<0.010 |
|||
|
RO4200, RO4210 |
18000 (125) |
12000 (85) |
25 |
20 |
Chemical Identifiers
|
Linear Formula |
Nb |
|
MDL Number |
MFCD00011126 |
|
EC No. |
231-113-5 |
|
Beilstein/Reaxys No. |
N/A |
|
Pubchem CID |
23936 |
|
SMILES |
[Nb] |
|
InchI Identifier |
InChI=1S/Nb |
|
InchI Key |
GUCVJGMIXFAOAE-UHFFFAOYSA-N |
Niobium Crucible Properties (Theoretical)
|
Molecular Weight |
92.9 |
|
Appearance |
Silvery |
|
Melting Point |
2468 °C |
|
Boiling Point |
4742 °C |
|
Density |
8.57 g/cm3 |
|
Solubility in H2O |
N/A |
|
Electrical Resistivity |
12.5 microhm-cm @ 0 °C |
|
Electronegativity |
1.6 Paulings |
|
Heat of Vaporization |
N/A |
|
Poisson's Ratio |
0.4 |
|
Specific Heat |
0.064 Cal/g/K @ 25 °C |
|
Tensile Strength |
N/A |
|
Thermal Conductivity |
0.537 W/cm/K @ 298.2 K |
|
Thermal Expansion |
7.3 µm/(m·K) |
|
Vickers Hardness |
1320 MPa |
|
Young's Modulus |
105 GPa |
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