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Silicon Nitride Ceramic Sheets are high-performance inorganic non-metallic materials refined from high-purity silicon nitride (Si₃N₄) powder using advanced hot-pressing or gas-pressure sintering processes. Due to their superior mechanical properties, thermal properties, and chemical stability, silicon nitride ceramic sheets have become an indispensable key basic material in high-end equipment manufacturing, electronic semiconductors, new energy, and aerospace fields.
Silicon Nitride Ceramic Substrates/Plates/Sheets for New Energy
Product Description
Silicon nitride Plates, with their comprehensive advantages including high temperature resistance, thermal shock resistance, high wear resistance, strong corrosion resistance, and low density, have become one of the most widely used materials in industrial ceramics. Their performance stability is outstanding under harsh conditions such as 1200℃ high temperature, corrosive fluids, and high-speed friction. Compared with traditional metal materials, their service life can be increased by several to tens of times. They also possess lightweight and insulating properties, making them a key preferred alternative to traditional materials such as metals and quartz in the upgrading of high-end equipment.
Product Specifications and Customization Capabilities
1.standard specifications138.5×190.5 mm, 114.3×114.3 mm, 100×100 mm, etc.
2.thickness range: 0.25 mm–2.0 mm (customizable upon request)
3.custom processing:laser precision cutting, drilling, grooving
double-sided grinding/polishing, surface roughness up to Ra 0.1 μm
metallization (compatible with copper/aluminum bonding processes)
4.tolerance accuracy up to ±0.01mm, surface roughness Ra≤0.5μm
Core Performance Advantages
| Item | Outstanding Performance |
| High Temperature Stability | it can operate continuously at temperatures below 1200°C, with short-term temperature resistance up to 1400°C, and exhibits minimal strength degradation at high temperatures. |
| Mechanical Strength | with a flexural strength of 800–1000 MPa and a fracture toughness of 6–8 MPa·m¹/², these properties far exceed those of ordinary structural ceramics. |
| Wear-resistant and Self-lubricating | with a low coefficient of friction and excellent wear resistance, it is suitable for oil-free lubrication and high-load conditions. |
| Thermal Shock Resistance | it has a low coefficient of thermal expansion (2.5–3.5 × 10⁻⁶ /K) and excellent resistance to rapid heating and cooling. |
| Chemical Inert | it is resistant to strong acids, strong alkalis and molten metal corrosion, and has excellent high-temperature oxidation resistance. |
| Electrical Insulation and Thermal Conductivity | volume resistivity >10¹⁴ Ω·cm, thermal conductivity 15–90 W/(m·K) (adjustable depending on grade) |
Typical Technical Parameters
| Parameter | Standard Type | High Thermal Conductivity |
| Density | 3.2–3.4 g/cm³ | 3.2–3.4 g/cm³ |
| Flexural Strength | ≥ 800 MPa | ≥ 700 MPa |
| Fracture Toughness | ≥ 6.5 MPa·m¹/² | ≥ 6.0 MPa·m¹/² |
| Vickers Hardness | 15–17 GPa | 15–17 GPa |
| Thermal Conductivity | 15–30 W/(m·K) | 80–100 W/(m·K) |
| Coefficient of Thermal Expansion | 3.2 × 10⁻⁶ /K | 3.0 × 10⁻⁶ /K |
| Surface Roughness (Ra) | 0.2–0.8 μm | 0.2–0.8 μm |
Main Application Areas
Quality Assurance
A rigorous quality control system is implemented throughout the entire process.
Each batch of products undergoes: Ultrasonic non-destructive testing (internal defect detection)
Three-point bending strength sampling test
Coordinate measuring machine (CMM) dimensional accuracy inspection
Thermal cycling reliability verification
These process can ensure every silicon nitride ceramic sheet possesses stable performance consistency and long-term service reliability.
Our workshop
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CNC Workshop |
Testing Room |
|
Surface grinding Workshop |
Sintering Workshop |
|
Circular Grinding Workshop |
Injection molding Machine Workshop |
Why choose us?
1.Customized R&D, rather than standard product adaptation
2.Deep control of materials science：Material Selection Based on Needs，Microstructure Optimization，Batch Consistency
3.Precision machining capability：Flatness can reach 0.001mm, parallelism 0.002mm, and roughness Ra 0.1μm.
FAQ
Q1: What products does your company offer?
We specialize in high-performance ceramics such as alumina and silicon nitride, providing insulators, structural components, wear-resistant parts, and customized solutions.
Q2: Can you customize non-standard parts?
Yes. We support processing based on provided drawings and collaborative technical development, offering a full-process service from design to mass production.
Q3: What about accuracy and delivery time?
Standard tolerance ±0.05mm, precision grade ±0.01mm; samples 7-15 days, bulk orders 20-30 days.
Q4: Main application areas?
Power, electronics, machinery, chemical, and aerospace industries.
Q5: Quality assurance measures?
Full-process quality inspection, providing material reports and performance test data, supporting third-party certification and testing.
Q6: Do you provide technical support?
We provide professional support such as material selection consultation, design optimization, and failure analysis.
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