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High Temperature Resistant Silicon Nitride Ceramic with Exceptional Mechanical Strength and Excellent Fracture Toughness

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High Temperature Resistant Silicon Nitride Ceramic with Exceptional Mechanical Strength and Excellent Fracture Toughness

Name: High Temperature Resistant Silicon Nitride Ceramic with Exceptional Mechanical Strength and Excellent Fracture Toughness
Brand: KEGU
Price: 200 USD

Quality High Temperature Resistant Silicon Nitride Ceramic with Exceptional Mechanical Strength and Excellent Fracture Toughness for sale

Brand Name : KEGU

Place of Origin : China

Price : 200-500 yuan/kg

Payment Terms : L/C,D/A,D/P,T/T,Western Union,MoneyGram

Supply Ability : 2,000 pcs/month

Packaging Details : Strong wooden box for Global shipping

Model Number : Customizable

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

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Unlock Peak Performance with Advanced Silicon Nitride Ceramics

Silicon Nitride (Si3N4) stands as the premier technical ceramic material, offering the most versatile combination of mechanical, thermal, and electrical properties available. This high-performance material delivers exceptional hardness, outstanding thermal shock resistance, and superior impact resistance—making it ideal for the most demanding industrial applications.

Why Choose Silicon Nitride Ceramics?

Superior Material Properties:

Exceptional Mechanical Strength: Maintains high strength across extreme temperature ranges
Excellent Fracture Toughness: Withstands intense mechanical stress and impact
Outstanding Thermal Shock Resistance: Performs reliably through rapid temperature changes
High Wear & Corrosion Resistance: Ideal for harsh environments and abrasive conditions
Excellent Electrical Insulation: Functions as reliable insulator across temperature spectrum
Low Thermal Expansion: Maintains dimensional stability under thermal cycling

Comprehensive Property Data

Mechanical Properties

Unit

Density

g/cm3

Compressive Strength

MPa

Flexural Strength

MPa

Weibull-Modulus m

Fracture Toughness KIc

MPa m^1/2

Young‘s Modulus E

GPa

Poisson Ratio

Hardness Vickers (HV 1)

GPa

Value

3.21

3000

800

6.5

320

0.28

Thermal Properties

Unit

Max Temp (Inert Gas)

°C

Max Temp (Air)

°C

Thermal Conductivity @ 20°C

W/mK

Thermal Conductivity @ 1000

W/mK

Thermal Expansion @ 20–100°C

10-6/K

Thermal Expansion @ 20–1000°C

10-6/K

Thermal Shock Parameter R1

Thermal Shock Parameter R2

W/mm

Value

1200

1100

3.5

600

Electrical Properties

Unit

Resistivity at 20°C

Ωcm

Resistivity at 800°C

Ωcm

Dielectric Constant

1 MHz

Value

10^12

10^7

Silicon Nitride Manufacturing Processes

Gas Pressure Sintered Silicon Nitride (GPSN)
- Most popular method for high-strength components
- Produces complex geometries with excellent mechanical properties
- Ideal for custom components and precision applications
- Suitable for rods, bearings, and engineered ceramic parts
Reaction-Bonded Silicon Nitride (RBSN)
- Porous structure (70-85% density)
- Excellent for high-temperature thermal shock applications
- Cost-effective for specific use cases
Hot Pressed Silicon Nitride (HPSN)
- Superior mechanical properties
- Limited to simple shapes due to manufacturing constraints
- Requires diamond grinding for complex geometries
Hot Isostatically Pressed Silicon Nitride (HIP-SN)
- Highest density and mechanical performance
- Premium process for critical applications
- Enhanced reliability and defect reduction
Key Applications & Industries

Industrial Components:
- Rotating Ball & Roller Bearings
- Cutting Tools & Inserts
- Engine Components (valves, rocker arm pads, seal faces)
- Turbine Blades & Vanes
- Welding & Brazing Jigs
- Heating Element Components & Protection Tubes
Specialized Applications:
- Induction Heating Coil Supports
- Crucibles & Metallurgical Containers
- Metal Tube Forming Rolls and Dies
- TIG / Plasma Welding Nozzles
- Thermocouple Sheaths & Tubes
- Semiconductor Process Equipment
Custom Manufacturing & Machining Capabilities

Precision Manufacturing:
- Maximum diameter: 430mm
- Maximum length: 1350mm
- Full customization available
- Green-state and dense machining
- Diamond grinding for tight tolerances
Machining Services:
- Green-state machining for complex geometries
- Diamond tool machining for sintered components
- Precision grinding for tight tolerance requirements
- Custom component design and fabrication
Technical Advantages Summary

Performance Benefits:
- Superior to metals in high-temperature capabilities
- Excellent creep and oxidation resistance
- Low thermal conductivity with high wear resistance
- Mechanical fatigue resistant
- Lightweight with high stiffness
- Good chemical corrosion resistance
Industry Solutions:
- Perfect for applications requiring high-temperature and high-load capabilities
- Ideal for thermal shock prone environments
- Excellent for wear-resistant components
- Superior electrical insulation in demanding conditions

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