Dayoo Advanced Ceramic Co.,Ltd
| Delivery Time | Negotiable |
| Payment Terms | Negotiable |
| Maximum Use Temperature | 1200°C |
| Surface Finish | Smooth |
| Colour | black |
| Mechanical Strength | High |
| Flexural Strength | 400-600 MPa |
| Electrical Insulation | Yes |
| Sample | available |
| Low Thermal Expansion | Yes |
| Tensile Strength | 700 MPa |
| Package | Customized |
| Wire Length | 300mm |
| Dimensional Stability | Excellent |
| Size | Customized |
| Thermal Expansion | 3.4*10(4) ℃ |
| Grade | G3-G1000 |
| Place of Origin | Made In China |
| Brand Name | Dayoo |
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Product Specification
| Delivery Time | Negotiable | Payment Terms | Negotiable |
| Maximum Use Temperature | 1200°C | Surface Finish | Smooth |
| Colour | black | Mechanical Strength | High |
| Flexural Strength | 400-600 MPa | Electrical Insulation | Yes |
| Sample | available | Low Thermal Expansion | Yes |
| Tensile Strength | 700 MPa | Package | Customized |
| Wire Length | 300mm | Dimensional Stability | Excellent |
| Size | Customized | Thermal Expansion | 3.4*10(4) ℃ |
| Grade | G3-G1000 | Place of Origin | Made In China |
| Brand Name | Dayoo | ||
| High Light | silicon nitride oxide si3n4 ，oxidation resistance silicon nitride oxide ，oxidation resistance si3n4 ceramic | ||
Silicon Nitride Ceramic: The Ultimate Guide To Properties, Applications, And Technical Specifications
Silicon Nitride (Si₃N₄) Ceramic is an advanced engineering material manufactured through powder metallurgy and high-temperature sintering processes. Its unique covalent-bonded structure endows it with exceptional mechanical, thermal, and chemical properties, including ultra-high strength, exceptional thermal shock resistance, outstanding wear resistance, and excellent corrosion resistance. Recognized as one of the most versatile high-performance ceramics, it is widely used in demanding industrial applications.
High Strength & Hardness: Superior wear life, significantly outperforming traditional metals.
High-Temperature Resistance: Maintains mechanical properties and shape stability up to 1,200°C.
Corrosion Resistance: Highly resistant to most acids, alkalis, and corrosive media.
Low Density: Only 40% the weight of steel, enabling lightweight design and reduced inertia.
Self-Lubricating: Low friction coefficient against metals, ideal for limited-lubrication conditions.
Ideal for critical components in extreme environments:
Mechanical Components: High-performance bearing balls, rollers, cutting tools.
Sealing Systems: Mechanical seal rings, pump seals for corrosive/abrasive environments.
Industrial Wear Parts: Sandblasting nozzles, conveyor slides, wear-resistant liners.
High-Temperature Components: Crucibles, thermocouple tubes, turbine blades.
Semiconductor Manufacturing: Wafer handling arms, vacuum chucks, precision pins.
| Property | Unit | Typical Value | Test Standard |
|---|---|---|---|
| Density | g/cm³ | 3.20 - 3.30 | ASTM C20 |
| Flexural Strength | MPa | 600 - 850 | ASTM C1161 |
| Vickers Hardness | GPa (Hv0.5) | 14 - 16 | ASTM C1327 |
| Fracture Toughness | MPa·m¹/² | 5.5 - 7.0 | SEPB Method |
| Elastic Modulus | GPa | 280 - 320 | ASTM C1198 |
| Max Service Temp | °C (in air) | 1,200 - 1,300 | - |
| CTE | ×10⁻⁶/°C (RT-1k°C) | 3.0 - 3.3 | ASTM E228 |
| Thermal Conductivity | W/(m·K) | 25 - 35 | ASTM E1461 |
Key steps: Powder Preparation → Forming (Dry Pressing/CIP/Injection Molding) → Sintering (Pressureless/Gas Pressure) → Precision Machining (Grinding/Lapping/Polishing) → Non-Destructive Testing → Final Inspection & Packaging.
Installation: Avoid impact loading; despite high strength, it is a brittle material.
Pairing: Use softer metals as counterfaces to minimize ceramic wear.
12-month quality warranty from shipment date.
Custom technical consulting and design services available.
Non-standard customization supported for specific applications.
Q: How does silicon nitride compare to zirconia in wear resistance?
A: Si₃N₄ excels in high-temperature, dry, or high-speed conditions due to its superior thermal and chemical stability.
Q: Can complex shapes be manufactured?
A: Yes, via Ceramic Injection Molding (CIM) for near-net-shape parts, finished with precision machining.
Q: What are its limitations?
A: Primary limitations are brittleness (notch sensitivity) and higher cost compared to metals.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. Deyu Precision Ceramics Technology Co., Ltd. has many years of e... We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. Deyu Precision Ceramics Technology Co., Ltd. has many years of e...
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