Dayoo Advanced Ceramic Co.,Ltd
Dayoo Advanced Ceramic Co.,Ltd
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Advanced Sintering Technology And Precise Atmosphere Control For Ceramic Nozzles In Semiconductor And Energy Industries
This product is manufactured using 99.6% high-purity silicon nitride (Si₃N₄) material through precisely controlled sintering processes. Utilizing multi-stage gradient sintering curves and precise atmosphere control technology to ensure optimal microstructure and performance.
Aircraft engines: High-temperature fuel injection systems
Energy equipment: Gas turbine combustion chambers
Industrial spraying: HVOF (High-Velocity Oxygen Fuel) spraying
3D printing: Metal powder atomization devices
Semiconductor: Wafer cleaning equipment
✓ Precise temperature control: ±3℃ furnace uniformity
✓ Accurate atmosphere: Nitrogen protection with ≤5ppm oxygen
✓ Optimized gradient: 12-segment programmable heating curve
✓ Grain boundary control: Optimal grain boundary phase composition
✓ Density assurance: Relative density ≥99.5%
| Sintering Parameter | Control Standard | Inspection Method |
|---|---|---|
| Peak sintering temp | 1850±5℃ | Infrared thermometry |
| Holding time | 4±0.2h | Digital timer |
| Heating rate | Adjustable 3-5℃/min | Curve recording |
| Nitrogen purity | ≥99.999% | Gas analysis |
| Furnace pressure | 10±0.5MPa | Digital manometer |
| Density test | ≥3.24g/cm³ | Archimedes method |
Debinding stage:
Temperature: Below 600℃
Atmosphere: Flowing nitrogen
Duration: 12-16h
Presintering stage:
Temperature: 1200-1500℃
Heating rate: 3℃/min
Soaking: 2h
High-temperature sintering:
Temperature: 1850℃
Atmosphere: High-pressure nitrogen (10MPa)
Soaking: 4h
Cooling control:
Rate: 2-3℃/min (above 1000℃)
Protection: Continuous nitrogen flow
⚠️ Installation: Use ceramic-specific tools
⚠️ Temperature limit: Continuous use ≤1600℃
⚠️ Pressure limit: Working pressure ≤80MPa
⚠️ Media restriction: Avoid HF environment
Technical support: Free sintering process consultation
Customization: Special sintering curve development
Emergency response: 24-hour technical support
Q: Effect of sintering temperature deviation?
A: Minimal impact within ±5℃, significant strength reduction beyond ±10℃.
Q: How to ensure batch consistency?
A: Digital sintering curve traceability system.
Q: Sintering control for special shapes?
A: Custom molds and support systems available.
