Density: 3.2 g/cm³.
Mohs hardness: 9.
Flexural strength: 600-800 MPa.
Coefficient of thermal expansion: 3.1×10⁻⁶/℃.
Operating temperature: ≤1000℃ in air, ≤1400℃ in protective atmosphere.
Wear resistance: Wear rate is only 1/5 of that of tungsten carbide.
Product Introduction of Silicon Nitride Ceramic Nozzles
Silicon nitride ceramic nozzles are special ceramic products primarily composed of silicon nitride (Si₃N₄). Complex structures can be manufactured using 3D printing technology, meeting the demands of high temperature and high strength applications. Thanks to their excellent physical and chemical properties, these products have a wide range of applications in industrial fields.
Product Features
1. High-temperature stability: Maintains stable performance at temperatures up to 1600℃.
2. Excellent thermal shock resistance: Withstands rapid heating and cooling cycles from 1000℃ to 25℃.
3. Superior wear resistance: Exhibits extremely low fretting wear rate in acidic solutions containing solid particles.
4. Chemical stability: Shows good corrosion resistance to most acids, bases, salts, and other chemical media.
5. Self-lubricating properties: The SiO₂ film formed on the surface reduces the friction coefficient to 0.15.
Application Fields
1. High-temperature plasma cutting: Used as an innovative material.
2. Aerospace: High-temperature components such as engine nozzles.
3. Petrochemical industry: Critical parts such as pipe connections and valve seals.
4. Semiconductor manufacturing: Gas nozzles in PECVD processes.
5. Photovoltaic industry: Release agent coating for polycrystalline silicon ingot casting.
Supports custom specifications.
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