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| Categories | Ceramic Nozzles | 
|---|---|
| Place of Origin: | Made In China | 
| Brand Name: | Dayoo | 
| MOQ: | Negotiable | 
| Price: | Negotiable | 
| Delivery Time: | Negotiable | 
| Payment Terms: | Negotiable | 
| Corrosion Resistance: | Excellent | 
| Temperature Resistance: | Up to 1600°C | 
| Color: | White | 
| Shape: | Round | 
| Product Type: | Nozzles | 
| Electrical Insulation: | High | 
| Material: | Ceramic | 
| Size: | Various sizes available | 
| Surface Finish: | Smooth | 
| Wear Resistance: | Excellent | 
| Hardness: | 9 on Mohs scale | 
| Thermal Shock Resistance: | Excellent | 
| Precision Tolerance: | High | 
| Application: | Industrial and manufacturing processes | 
| Chemical Resistance: | Highly resistant to acids, alkalis, and solvents | 
| Company Info. | 
| Dayoo Advanced Ceramic Co.,Ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
High-Temperature Ceramic Nozzles With Rapid Temperature Adaptation For Extreme Operating Conditions
Manufactured from 99.5% high-purity silicon nitride (Si₃N₄) through specialized formulation design and gas pressure sintering technology, this product demonstrates exceptional thermal shock resistance. Capable of withstanding sudden temperature variations up to 1200°C without cracking, making it ideal for extreme operating conditions with rapid temperature fluctuations.
Aircraft engines: Fuel injection systems for combustion chambers
Steel metallurgy: Secondary cooling nozzles for continuous casters
Glass manufacturing: Annealing lehr jet systems for float glass
Chemical equipment: High-temperature reactor injection devices
Heat treatment furnaces: Rapid quenching cooling systems
✓ Exceptional ΔT resistance: Withstands 1200°C thermal shock
✓ Rapid temperature adaptation: Permits 20°C/s heating/cooling
rates
✓ High-temperature stability: Maintains structural integrity at
1600°C
✓ Thermal fatigue resistance: >95% strength retention after 1000
cycles
✓ Quenching-proof: 100% pass rate in water quenching tests
| Parameter | Specification | 
|---|---|
| Material Purity | Si₃N₄≥99.5% | 
| Thermal Shock ΔT | 1200°C (water quenching test) | 
| Flexural Strength | ≥650MPa (post-shock) | 
| CTE | 3.1×10⁻⁶/°C | 
| Thermal Conductivity | 25W/(m·K) | 
| Maximum Service Temp | 1600°C | 
| Thermal Cycles | >1000 (ΔT=1000°C) | 
| Post-Shock Strength Retention | >95% | 
Material optimization: Unique grain boundary phase design
Forming process: 200MPa isostatic pressing
Gas pressure sintering: 1850°C nitrogen atmosphere
Microstructure control: β-Si₃N₄ whisker toughening
Performance testing: Water quenching thermal shock test (1200°C⇄RT)
⚠️ Installation: Maintain 0.5-1mm thermal expansion gap
⚠️ Temperature control: Permits rapid heating (≤20°C/s)
⚠️ Cooling restrictions: Avoid localized forced cooling
⚠️ Maintenance: Inspect for thermal shock damage every 500 hours
Technical support: Free thermal stress analysis
Custom solutions: Special thermal shock condition designs
Emergency response: 12-hour technical support
Q: Maximum allowable temperature change rate?
A: Permits up to 20°C/s, recommended ≤15°C/s.
Q: Performance in oxidizing atmospheres?
A: Stable below 1200°C, recommended <1000°C for prolonged use.
Q: How to identify thermal shock damage?
A: Replace when surface cracks >0.1mm or flow variation >10%
occurs.





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