Spherical Niobium Carbide (NbC) for thermal spraying Description
Spherical Niobium Carbide (NbC) for thermal spraying is a grayish-brown metallic powder with a purple luster, good chemical stability, and high-temperature performance. It’s a kind of the high melting point, high hardness material.
Spherical Niobium Carbide (NbC) for thermal spraying Specifications
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Specification
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Average Particle Size
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10.0-60.0um
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Purity (%)
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>99.5
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Oxygen Content (%)
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≤0.5
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Carbon Content (%)
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≤0.05
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Fluidity (S/50g)
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12
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Spherical Niobium Carbide (NbC) Powder Properties
- High melting point and excellent thermal stability
- Superior hardness, providing wear and abrasion resistance
- Good chemical stability, ensuring durability in harsh conditions
- High-temperature performance, maintaining material integrity under extreme conditions. Ability to form strong coatings that enhance the lifespan of components in demanding environments
Spherical Niobium Carbide (NbC) for thermal spraying Applications
Spherical Niobium Carbide (NbC) for thermal spraying is widely used in refractory high temperature materials, spraying materials, welding materials, and cemented carbide additives, and other fields.
- Thermal spraying for wear-resistant coatings in high-temperature environments.
- Aerospace and defense applications, including components subjected to extreme heat and wear
- High-performance coatings for tools and industrial machinery
- Powder metallurgy for advanced materials
- High-temperature protection in industrial processes
Differences Between Niobium Carbide (NbC), Titanium Carbide (TiC) and Tungsten Carbide Powder (WC)
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Property
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Niobium Carbide (NbC)
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Tantalum Carbide (TaC)
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Titanium Carbide (TiC)
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Melting Point
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~3,500°C (higher)
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~3,880°C (highest)
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~3,160°C
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Hardness
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~2,000 HV
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~1,800–2,200 HV (higher than NbC, comparable to high-grade TiC)
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~2,800–3,200 HV (harder)
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Density
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7.82 g/cm³
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14.3–14.5 g/cm³ (highest/densest)
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4.93 g/cm³ (lighter)
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Oxidation Resistance
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Better than TiC (stable above 1,200°C)
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Excellent, stable in air up to ~1,500°C
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Prone to oxidation at 800–1,000°C
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Applications
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High-temperature wear-resistant coatings (e.g., aircraft engines)
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Ultra-high-temperature coatings, rocket nozzles, nuclear reactor components, high-end wear protection
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Cutting tools, wear-resistant parts (e.g., blades)
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Spherical Niobium Carbide (NbC) for thermal spraying Packaging
Our Spherical Niobium Carbide (NbC) for thermal spraying is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
FAQs
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What are the main advantages of spherical niobium carbide compared to other thermal spray materials?
Compared to other thermal spray materials, spherical niobium carbide (NbC) stands out due to its extremely high melting point (around 3500°C) and hardness (~2000 HV), making it especially suitable for extreme high-temperature and wear-resistant applications. Its excellent chemical stability, combined with the free-flowing nature of the spherical powder, allows for the creation of denser, more uniform, and highly corrosion-resistant coatings.
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How does spherical niobium carbide powder perform in high-temperature environments?
Under high-temperature conditions, spherical NbC powder demonstrates remarkable stability. It maintains excellent oxidation resistance up to around 1200°C and retains high mechanical strength even above 1500°C. Additionally, its low coefficient of thermal expansion (approximately 6.8×10⁻⁶/K) provides outstanding thermal shock resistance, significantly reducing the risk of cracking during repeated thermal cycling.
