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Silicon nitride ceramic powder (Si₃N₄) is an advanced engineering material designed for applications requiring superior thermal stability, high mechanical strength, and excellent chemical resistance. Produced through precision synthesis and controlled sintering processes, this powder delivers optimized particle uniformity, enhanced fracture toughness, and reliable compatibility with various ceramic formulations. It is widely used in high-performance ceramic coatings, precision machining, wear-resistant components, semiconductor processing, and aerospace applications, ensuring consistent efficiency under extreme conditions.
Product Overview:
Silicon Nitride Ceramic Powder (Si₃N₄) is a research-grade ultrafine ceramic powder, renowned for its high purity, small particle size, large specific surface area, and high surface reactivity. This powder exhibits exceptional high-temperature performance, maintaining strength up to 1200°C without any loss in properties, and only decomposing at temperatures around 1900°C. It also boasts outstanding chemical resistance, with the ability to withstand nearly all inorganic acids and caustic soda solutions (up to 30%), as well as strong resistance to various organic acids.
In addition, silicon nitride is considered an excellent electrical insulator, maintaining stable electrical properties even in high-temperature and high-pressure environments.
Product Features:
- High Purity and Ultrafine Particles:The silicon nitride powder has extremely high purity and small particle size, ensuring stable performance for precision applications.
- High-Temperature Performance:The powder retains its strength in environments up to 1200°C and does not melt, making it ideal for high-temperature working environments.
- Chemical Corrosion Resistance:It offers excellent resistance to inorganic acids, caustic soda solutions, and various organic acids, making it suitable for corrosive environments.
- Electrical Insulation Properties:As a high-performance electrical insulating material, silicon nitride maintains stable electrical properties in high-temperature environments.
Applications:
Silicon Nitride Ceramic Powder is widely used in the following fields:
- High-Temperature Applications:Used in metallurgy, ceramics, heat treatment, and other high-temperature processes.
- Chemical Corrosion Resistance:Ideal for materials used in highly corrosive environments, extensively used in the chemical industry.
- Electronics and Electrical Engineering:Used as an electrical insulating material in the manufacturing of high-temperature and high-pressure electrical components.
- Aerospace:In aerospace applications, silicon nitride powder is used in high-precision components that require high-temperature and corrosion resistance.
- Energy Sector:Applied in the production and research of high-tech products like new energy devices and high-temperature batteries.
| Silicon Nitride Ceramic Data Sheet | ||
| Performance | Unit | Typical Value |
| Density | g/cm³ | 3.26 |
| Relative Density | % | >99.5 |
| Elastic Modulus | GPa | 300~320 |
| Compression Strength Ratio | % | 40~50 |
| Hardness | GPa | 16~20 |
| Fracture Toughness | MPa·m¹/² | 6.0~9.0 |
| Bending Strength | MPa | 600~1000 |
| Poisson's Ratio | 0.25 | |
| Linear Expansion Coefficient | 10⁻⁶·K⁻¹ | 3.1~3.3 |
| Webuller Modulus | 12~15 | |
| Thermal Conductivity | W·(m·K)⁻¹ | 15~20 |
| Specific Resistance | 10¹⁸ | |
| Corrosion Resistance | Excellent | |
| Size Stability | Excellent | |
| Magnetic | None | |
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