Description
Silicon Nitride (Si₃N₄) Micron Powder – Beta Phase, 99.9% Purity, 325 Mesh
Product Description:
Silicon Nitride (Si₃N₄) Micron Powder in its β-phase crystalline structure offers superior mechanical and thermal properties, making it ideal for demanding industrial and technological applications. With a fine particle size corresponding to 325 mesh and a high purity of 99.9%, this ceramic powder delivers excellent thermal shock resistance, high strength, wear resistance, and low density. The β-phase variant of Si₃N₄ is particularly noted for its elongated grains, which contribute to improved fracture toughness and mechanical reliability.
This powder is widely used in aerospace components, high-performance cutting tools, automotive engine parts, bearings, and electronic substrates. Its low coefficient of thermal expansion, high thermal conductivity, and resistance to oxidation and corrosion under extreme temperatures make it suitable for harsh environments.
Typical Chemical Analysis of Silicon Nitride (Si₃N₄) Micron Powder
| Element | Content (wt%) |
|---|---|
| Si₃N₄ | ≥ 99.9 |
| Fe | ≤ 0.005 |
| Al | ≤ 0.005 |
| Ca | ≤ 0.003 |
| O | ≤ 0.20 |
| Free Si | ≤ 0.01 |
Key Features & Advantages
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β-phase crystalline structure for enhanced fracture toughness
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Ultra-high purity (≥99.9%) for advanced applications
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Excellent thermal shock resistance
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Low thermal expansion and high hardness
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Chemically inert and oxidation resistant
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Ideal for 325 mesh level fine processing and composites
Applications
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Aerospace: Turbine components, structural insulators
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Automotive: Glow plugs, engine components, turbocharger rotors
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Electronics: High-frequency substrates, circuit insulation
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Industrial Ceramics: High-temperature bearings, cutting tools
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Medical: Wear-resistant, biocompatible parts