Custom Silicon Nitride Si3N4 Ceramic Substrate for Electric Vehicles - 0.3-1.0mm Thickness, 400mm Max Diameter
Price:
us$1~us$100/P
MOQ:
10p
Delivery Time:
30days
Brand:
wuxi special ceramic
Product Description
Material Overview
Silicon Nitride (Si3N4) is an advanced ceramic material engineered for high-temperature applications. It maintains exceptional strength from room temperature up to 1200°C, features a low coefficient of thermal expansion for superior thermal shock resistance, and offers excellent thermal conductivity.
Key Features & Advantages
- High thermal conductivity up to 70 W/m·K (3x higher than alumina substrates)
- Thermal expansion coefficient of 3.1×10⁻⁶/°C matches semiconductor silicon materials
- Superior bending strength - twice that of alumina substrates
- Excellent electrical performance with high insulation resistance and low dielectric loss
Product Specifications
- Available thicknesses: 0.30mm, 0.5mm, 0.635mm, 1.0mm
- Round ceramic wafers up to 400mm diameter in 3mm, 4mm, 5mm thickness
- Square & rectangular substrates up to 400mm × 500mm dimensions
- Surface finishes: Single or double-side polished to Ra0.4 or better
Technical Data Sheet
| Property | Unit | Typical Values |
|---|---|---|
| Physical Properties | ||
| Density | g/cm³ | >3.2 |
| Mechanical Properties | ||
| Hardness | HRA90 | - |
| Vickers Hardness (Hv50) | HV0.5 | >1550 |
| Modulus of Elasticity | GPa | 290 |
| Flexural Strength | MPa | >600 |
| Compressive Strength | MPa | 2500 |
| Fracture Toughness | MPa·m¹/² | >6.0 |
| Thermal Properties | ||
| Maximum Use Temperature | °C | 1200 |
| Thermal Conductivity | W/(m·K) | 15-20 |
| Thermal Expansion Coefficient | 10⁻⁶/°C | >3.1 |
| Thermal Shock Resistance | T°C | 500 |
| Specific Heat Capacity | kJ/kg·K | 700 |
| Electrical Properties | ||
| Dielectric Strength | kV/mm | 1 |
| Volume Resistivity at 20°C | Ω·cm | 1.0×10¹² |
Manufacturer Information
Wuxi Special Ceramic Co., Ltd specializes in manufacturing advanced ceramic materials including alumina, silicon nitride, zirconia, steatite, boron nitride, cordierite, and mullite products. Our ceramics are widely utilized in metal welding, electronic conductors, mechanical assemblies, insulation systems, chemical processing, instrumentation, textile manufacturing, nuclear industry, and aerospace applications.
We offer custom manufacturing services based on drawings or samples, with trial production typically completed within 30 days and mass production following the same timeframe. Packaging options include carton or PLT, with negotiable arrangements available.
Our established clientele includes Toshiba Lighting Group in Japan and Europe. We are committed to delivering high-quality products with rapid turnaround times.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Wuxi Special Ceramic Electrical Co.,Ltd
Location
No4 Longshan Road,Xinwu District,Wuxi City,Jiangsu Province
Contact Person
Zhu