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![Cell Lab 3N5 (99.95%) Niobium (Nb) Pellets Evaporation Materials [2 mm Dia × 5–8 mm L]](http://celllab.co.uk/cdn/shop/files/20251007_1935___remix_01k6z74xtqfr7vggxx1brsrtfh_medium.png?v=1759837103)
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High-Purity Niobium for Thin-Film, Superconducting, and Coating Applications
Cell Lab 3N5 (99.95%) Niobium (Nb) Pellets are premium-quality evaporation materials engineered for vacuum coating, superconducting, and surface protection applications. Niobium is a light-grey, ductile transition metal known for its high melting point, superior oxidation resistance, and excellent biocompatibility — making it ideal for metal-based transistors, implant coatings, and high-strength alloy production.
In thin-film research, niobium is frequently used in superconducting films, optical coatings, and protective layers on electronic and medical substrates. Beyond research, it plays a crucial role in pipeline steel, welding electrodes, aerospace alloys, and nuclear components.
High Purity (99.95%) – Ensures minimal impurities for reliable electronic and vacuum coating performance.
Excellent Oxidation Resistance – Forms stable Nb₂O₅ layers at elevated temperatures.
Superconductive Properties – Suitable for applications in quantum devices and cryogenic systems.
Biocompatible Surface – Used for biomedical coatings and corrosion-resistant implants.
Customisable Dimensions – Standard 2 mm × 5–8 mm pellets; other dimensions available upon request.
| Parameter | Specification |
|---|---|
| Name | Niobium |
| Chemical Formula | Nb |
| CAS Number | 7440-03-1 |
| Atomic Number | 41 |
| Molecular Weight | 92.91 g/mol |
| Color / Appearance | Grey, Metallic |
| Purity | 99.95% (3N5) |
| Thermal Conductivity | 54 W/m·K |
| Melting Point | 2,468 °C |
| Coefficient of Thermal Expansion | 7.3 × 10⁻⁶ /K |
| Theoretical Density | 8.57 g/cm³ |
| Z Ratio | 0.492 |
| E-Beam Compatibility | Excellent |
| Temperature (°C) for Vapour Pressure (Torr) |
10⁻⁸: 1,728 °C 10⁻⁶: 1,977 °C 10⁻⁴: 2,287 °C |
Superconducting Films & Quantum Devices – Used for Josephson junctions and cryogenic electronics.
Protective Coatings – Ideal for oxidation and corrosion-resistant thin films.
High-Strength Steel Alloys – Enhances mechanical performance of pipelines and structural components.
Biomedical Implants – Provides improved surface biocompatibility and durability.
Optical & Electronic Components – Used in reflective and functional thin-film coatings.
Q1: What makes Niobium suitable for superconducting thin films?
Niobium’s low resistivity and high critical temperature (Tc ≈ 9.2 K) make it an ideal superconductor for quantum and cryogenic applications.
Q2: Can Niobium be co-evaporated with other metals?
Yes. It is commonly co-evaporated with Ti, Al, or Nb₂O₅ to create multilayer films or improve adhesion on substrates.
Q3: What are the main precautions when evaporating Niobium?
Maintain high-vacuum conditions and use refractory crucible liners (such as graphite or tungsten) to prevent contamination.
Q4: Is Niobium biocompatible for medical coatings?
Yes. Niobium coatings are non-toxic, corrosion-resistant, and frequently used on surgical and dental implants.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
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