Description
Niobium Carbide (NbC) Powder (99.9%, 500 nm)
Niobium Carbide (NbC) is an ultra-high temperature ceramic material known for its exceptional hardness, chemical stability, and thermal resistance. With a purity of 99.9% and an average particle size of ~500 nm, NbC powder is widely used in cutting tools, refractory coatings, aerospace components, and advanced alloys.
Niobium Carbide exhibits a density of 7.82 g/cm³, a very high melting point of 3490 °C, and a boiling point of 4300 °C, making it one of the most stable and durable refractory carbides. Its excellent mechanical and wear-resistant properties make it a critical additive in cemented carbides, hot forging dies, turbine blades, and rocket nozzle coatings.
Technical Properties
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Chemical Formula: NbC
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Purity: 99.9%
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Average Particle Size (APS): ~500 nm (1–3 µm range possible)
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Density: 7.82 g/cm³
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Melting Point: 3490 °C
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Boiling Point: 4300 °C
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Appearance: Dark gray to black powder
Certificate of Analysis (Metal Basis)
| NbC | Free C | C | O | Cu | Fe | Al | Si | Ni | Zn | APS |
|---|---|---|---|---|---|---|---|---|---|---|
| 99.9% | 0.35% | 11.5% | 0.8% | <0.01% | <0.01% | <0.01% | <0.01% | <0.01% | <0.01% | 500 nm (1–3 µm range) |
Applications
Niobium Carbide Powder is widely used in aerospace, metallurgy, and refractory industries due to its extreme hardness, wear resistance, and thermal stability:
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Cutting Tools & Dies: Hard phase additive in cemented carbides and tool steels.
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Refractory Coatings: Applied to rocket nozzles, tail skirts, jet engine turbine blades, and valves.
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Hot Forging Dies: Improves durability and wear resistance under extreme pressure and temperature.
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Alloy Additive: Enhances hardness and performance of steel and superalloys.
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Aerospace & Defense: Used in thermal protection systems and ultra-high temperature components.
Safety & Handling
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Handle with appropriate protective equipment (PPE).
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Avoid inhalation and direct skin contact.
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Store in airtight containers, in a dry and cool environment.