Dayoo Advanced Ceramic Co.,Ltd
| Delivery Time | Negotiable |
| Payment Terms | Negotiable |
| Electrical Insulation | Yes |
| Max Operating Temperature | 1200°C |
| Highest Melting Point | 1900℃ |
| Surface Finish | Smooth |
| Features | High temperature and high strength |
| Color | Grey |
| Density | 3.2 g/cm3 |
| Chemical Inertness | High |
| Drawing Format | 2D/(PDF/CAD)3D(IGES/STEP) |
| Application | Grinding Industrial |
| Low Thermal Expansion | Yes |
| Heating Wire | NiCr80/20 |
| Coefficient Of Friction | 0.15 |
| Hardness | 9 Mohs |
| Corrosion Resistance | High |
| Place of Origin | Made In China |
| Brand Name | Dayoo |
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Product Specification
| Delivery Time | Negotiable | Payment Terms | Negotiable |
| Electrical Insulation | Yes | Max Operating Temperature | 1200°C |
| Highest Melting Point | 1900℃ | Surface Finish | Smooth |
| Features | High temperature and high strength | Color | Grey |
| Density | 3.2 g/cm3 | Chemical Inertness | High |
| Drawing Format | 2D/(PDF/CAD)3D(IGES/STEP) | Application | Grinding Industrial |
| Low Thermal Expansion | Yes | Heating Wire | NiCr80/20 |
| Coefficient Of Friction | 0.15 | Hardness | 9 Mohs |
| Corrosion Resistance | High | Place of Origin | Made In China |
| Brand Name | Dayoo | ||
| High Light | high thermal conductivity silicon nitride si3n4 ，silicon nitride ceramics high thermal conductivity ，si3n4 silicon nitride ceramics | ||
Ultra-High Thermal Conductivity Silicon Nitride Ceramics for Power Electronics and New Energy Vehicles
Silicon nitride (Si₃N₄) ceramic substrates are manufactured using 99.5% high-purity raw materials through tape casting and gas pressure sintering processes. The products exhibit excellent thermal conductivity, high strength and reliability, making them an ideal thermal management solution for next-generation high-power electronic devices.
Power electronics: IGBT, SiC power modules
New energy vehicles: Motor controllers, OBC
Rail transportation: Traction converters
PV inverters: High-power photovoltaic modules
5G communications: Base station RF devices
✓ Ultra-high thermal conductivity: ≥90W/(m·K)
✓ High strength & toughness: Flexural strength ≥600MPa
✓ Low thermal expansion: CTE 3.2×10⁻⁶/°C
✓ Excellent insulation: Volume resistivity >10¹⁴Ω·cm
✓ Superior reliability: Passes 1000 cycles of -40~150°C thermal shock test
| Parameter | Specification | Test Standard |
|---|---|---|
| Material Purity | Si₃N₄≥99.5% | GB/T 16535 |
| Dimensional Accuracy | ±0.1% | IPC-4101 |
| Thermal Conductivity | ≥90W/(m·K) | ASTM E1461 |
| Flexural Strength | ≥600MPa | ISO 14704 |
| CTE | 3.2×10⁻⁶/°C | DIN 51045 |
| Dielectric Strength | ≥25kV/mm | IEC 60672 |
| Surface Roughness | Ra≤0.2μm | ISO 4287 |
Material preparation: Nano-grade Si₃N₊ powder modification
Tape casting: Producing 0.1-1.2mm green tapes
Isostatic pressing: 200MPa densification
Gas pressure sintering: 1850°C/10MPa N₂ atmosphere
Precision machining: Laser cutting, drilling
Surface treatment: Double-side polishing to Ra≤0.2μm
⚠️ Storage: Vacuum packed, moisture and dust proof
⚠️ Soldering: Recommended active metal brazing
⚠️ Mounting stress: Control <50MPa assembly stress
⚠️ Thermal design: Recommended with thermal grease
Warranty: 36-month quality guarantee
Technical support: Free thermal design consultation
Testing service: Third-party test reports available
Customization: Special sizes and structures
Q: Advantages vs AlN substrates?
A: Main advantages:
① 3-5x higher strength
② Better thermal shock resistance
③ Higher reliability
Q: Maximum processable size?
A: Standard 200×200mm, special process up to 300×300mm.
Q: Recommended metallization?
A: Options include:
• DBC direct bonding copper
• AMB active metal brazing
• Thick film printing
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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