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Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Specifications
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
Model Number :
Customizable
Brand Name :
KEGU
Place of Origin :
China
Price :
200-500 yuan/kg
Payment Terms :
L/C,D/A,D/P,T/T,,
Supply Ability :
2,000 pcs/month
Packaging Details :
Strong wooden box for Global shipping
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
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.
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
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Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength

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Product Detail
Material :
Silicon Nitride
Composition:SiC :
＞85%
Color :
Black
Density :
3.20-3.26g/cm3
Max. Service Temp :
1450℃
Flexural Strength :
250MPa
Contact Supplier
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength
Si3N4 Nozzle Silicon Nitride Ceramic with Oxidation Resistance High Toughness and High Temperature Strength

Shaanxi KeGu New Material Technology Co., Ltd

Verified Supplier
2 Years
Shaanxi, tongchuan
Since 2017
Business Type :
Manufacturer, Trading Company
Main Products :
Silicon Carbide Ceramics, Porous Ceramic Membranes, Thermocouple Protection Tubes
Certification Level :
Verified Supplier
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