Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Basic Properties
Place of Origin:
China
Brand Name:
KEGU
Model Number:
Customizable
Trading Properties
Price:
200-500 yuan/kg
Payment Terms:
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability:
2,000 pcs/month
Product Summary
Si3N4 Nozzle Silicon Nitride Ceramics Silicon nitride nozzles and covers feature exceptional oxidation resistance, high temperature strength, and minimal sputter adhesion, significantly extending the service life of welding components. Among the five silicon nitride production methods, Gas Pressure ...
Product Details
Highlight:
Si3N4 Silicon Nitride Nozzle
,Silicon Nitride Ceramics Nozzle
,Oxidation Resistance Si3N4 Nozzle
Material:
Silicon Nitride
Composition:SiC:
＞85%
Color:
Black
Density:
3.20-3.26g/cm3
Max. Service Temp:
1450℃
Flexural Strength:
250MPa
Sample:
Customizable
Chemical Stability:
High
Apparent Porosity:
0-0.1%
Elastic Modulus:
300-320GPa
Compression Strength:
>1500MPa
Vickers Hardness(hv0.5):
15-16GPa
Thermal Conductivity:
20-25W/(m.k)
Specific Resistivity:
10^14Ω·cm
Product Description
Si3N4 Nozzle Silicon Nitride Ceramics
Silicon nitride nozzles and covers feature exceptional oxidation resistance, high temperature strength, and minimal sputter adhesion, significantly extending the service life of welding components.
Among the five silicon nitride production methods, Gas Pressure Sintering (GPS) is most commonly used for manufacturing Si3N4 components. GPS involves sintering at temperatures around 2000°C under nitrogen pressures of 1-10 MPa. The high nitrogen pressure prevents silicon nitride decomposition, while elevated temperatures enable substantial grain growth with minimal sintering aids. This process yields high-toughness ceramics with long columnar grains and densities exceeding 99%, providing excellent toughness, strength, and wear resistance while enabling near-net-shape production to reduce manufacturing costs.
Silicon Nitride Nozzle & Covers Specifications
| Size | Customized |
| Color | Black |
| Density | 3.22 g/cm³ |
| Flexural Strength | 800 MPa |
| Fracture Toughness | 6.5 MPa·m¹/² |
| Thermal Stress Parameters | 569 K |
Material Properties Data Sheet
| Item | Unit | Si3N4 |
|---|---|---|
| Type | - | Gas pressure sintered |
| Density | g/cm³ | 3.22 |
| Color | - | Dark grey |
| Water Absorption | % | 0 |
| Young Modulus | GPa | 290 |
| Vickers Hardness | GPa | 18-20 |
| Compressive Strength | MPa | 2200 |
| Flexural Strength | MPa | 650 |
| Thermal Conductivity | W/m·K | 25 |
| Thermal Shock Resistance | Δ(°C) | 450-650 |
| Max. Working Temperature | °C | 1200 |
| Volume Resistivity | Ω·cm | >10¹⁴ |
| Dielectric Constant | - | 8.20 |
| Dielectric Strength | kV/mm | 16 |
* Tests conducted under room temperature environment
* Properties may vary depending on manufacturing method
* Properties may vary depending on manufacturing method
Key Material Characteristics
- High strength across wide temperature ranges
- Exceptional fracture toughness
- High hardness rating
- Outstanding wear resistance
- Low thermal expansion with high thermal conductivity
- Excellent thermal shock resistance
- Superior chemical and oxidation resistance
Contact our sales team at sales@industrial-ceramicparts.com for detailed information or technical inquiries.
Packaging & Handling
Silicon nitride's inherent fragility requires careful handling during storage and transportation. Our nozzles and covers are packaged using protective outer boxes and specialized cushioning materials. Vacuum packaging is employed for select components to ensure optimal protection.
Miss. Scarlett.S
Deputy Head of Foreign Trade Department
- Email: scarlett.s@kegugroup.com
- Tel: 8616602956098
- WhatsApp: 8613390790728
-
WeChat:
Scarlettseren533
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