Overview of Niobium Nitride Powder NbN Powder
Niobium, often found in conjunction with tantalum minerals, is primarily extracted as a byproduct of tin and tantalum mining. Its chief ores include pyrochlore and columbite. Once refined, niobium becomes highly versatile, finding application in alloys, superconductors, and various high-tech materials.
Feature of Niobium Nitride Powder NbN Powder
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Superior Strength and Lightness: When added to steel in small quantities (typically less than 1%), niobium significantly enhances the strength and toughness of the alloy while reducing its weight, making it ideal for aerospace and automotive applications.
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Corrosion Resistance: Like tantalum, niobium forms a passive oxide layer that protects it from corrosion, making niobium-based alloys suitable for use in harsh environments.
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Superconductivity: Niobium exhibits excellent superconducting properties when cooled below its critical temperature of about 9.2 K (-264°C or -443°F). This property makes it the primary material for superconducting magnets used in MRI scanners and particle accelerators.
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Magnetic Properties: Niobium is paramagnetic at room temperature but becomes strongly diamagnetic when cooled, meaning it repels magnetic fields. This characteristic is exploited in certain specialized applications.
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Ease of Fabrication: Despite its strength, niobium is easily formed, welded, and machined, facilitating its use in complex engineering designs.
(Niobium Nitride Powder NbN Powder)
Parameters of Niobium Nitride Powder NbN Powder
The particle size of Niobium Nitride powder can be controlled by adjusting the air pressure, temperature, and the type of powder separator used. The ideal particle size for NbN powder is typically between 10-30 micrometers (um) to ensure good mechanical properties such as strength, hardness, and thermal stability.
For instance, under normal atmospheric pressure, the air content of a mixture of NbN powder and air ranges from 25% to 65%. A higher air content will result in smaller particles, while a lower air content will produce larger particles.
Similarly, using a fine grinding machine will help achieve smaller particles. However, it is important to note that too small particles may not have enough surface area to form bonds with each other and could result in poor mechanical properties.
In terms of temperature control, the maximum temperature range for the preparation of NbN powder is typically around 400°C to 800°C. Higher temperatures may cause the precipitation of impurities or phase separation, which can affect the quality of the final product.
As for the type of powder separator used, the choice depends on the specific application requirements. For example, powder separator machines such as ball mills or attritors may be used to create smaller particles, while those designed for the production of powders with higher particle sizes may use impactors or stages of centrifugation.
Overall, controlling the particle size of NbN powder and choosing an appropriate separator will help achieve the desired particle size and mechanical properties, which can improve the performance and durability of various applications.
(Niobium Nitride Powder NbN Powder)
Company Profile
Metal in China is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality copper and relatives products.
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