Advanced Technical Ceramics, Precision Alumina, Silicon Carbide, Crucible Parts
Silicon Nitride Substrate Si₃N₄ Ceramic Substrate
PRODUCT PARAMETERS
Description
Silicon Nitride Substrate is a high-performance advanced ceramic component manufactured from silicon nitride (Si₃N₄) material. It features excellent high-temperature resistance, low thermal expansion coefficient, superior thermal shock resistance, and stable mechanical properties. With a maximum operating temperature of 1200℃ and a thermal expansion coefficient of 3.1 × 10⁻⁶/℃, the Si₃N₄ ceramic substrate maintains excellent dimensional stability under thermal cycling conditions. It is widely used as a separator plate in heat exchangers, combustion chamber liners, and protective isolation components for sensitive parts in demanding industrial environments.
Technical Specifications
| Item | Specification |
|---|---|
| Product Name | Silicon Nitride Substrate |
| Material | Silicon Nitride (Si₃N₄) |
| Density | ≥3.2 g/cm³ |
| Vickers Hardness | HV ≥1500 |
| Flexural Strength | 600-1000 MPa |
| Elastic Modulus | 290 GPa |
| Thermal Expansion Coefficient | 3.1 × 10⁻⁶/℃ |
| Thermal Conductivity | 15-20 W/(m·K) |
| Maximum Operating Temperature | 1200℃ |
| Electrical Resistivity | ≥10¹⁴ Ω·cm |
| Chemical Resistance | Excellent resistance to oxidation and corrosion |
| Processing Capability | Precision machining available according to requirements |
Product Advantages
1. Excellent High Temperature Performance
Silicon Nitride Substrate can operate at temperatures up to 1200℃ while maintaining stable physical properties. It shows excellent resistance to thermal deformation under high-temperature conditions. This makes it suitable for industrial equipment exposed to continuous heat environments.
2. Superior Thermal Shock Resistance
The low thermal expansion coefficient of 3.1 × 10⁻⁶/℃ helps reduce thermal stress during rapid temperature changes. The substrate can withstand repeated heating and cooling cycles without easily cracking. It provides reliable performance in applications requiring frequent thermal fluctuations.
3. High Mechanical Strength and Durability
Si₃N₄ ceramic substrate has excellent hardness and mechanical strength, providing strong resistance to impact and wear. It maintains structural stability during long-term operation. This improves component reliability and extends service life.
4. Excellent Chemical Stability
Silicon Nitride Substrate offers strong resistance to oxidation and chemical corrosion. It can maintain stable performance in harsh industrial environments. This makes it suitable for applications involving high-temperature gases and corrosive conditions.
5. Reliable Protective Performance
The ceramic substrate provides excellent insulation and protection for sensitive components. It helps prevent damage caused by heat, mechanical stress, and environmental factors. This makes it ideal for precision equipment applications.
6. Precision Customization Capability
Silicon Nitride Substrates can be customized in different sizes, thicknesses, and surface finishes according to application requirements. Precision machining ensures accurate fitting and stable installation. Customized solutions can meet different industrial equipment needs.
Typical Applications
1. Heat Exchanger Separator Plates
Silicon Nitride Substrates are used as separating plates in heat exchangers due to their excellent thermal stability and corrosion resistance. They maintain structural integrity during high-temperature operation and thermal cycling. The low expansion characteristic helps improve equipment reliability.
2. Combustion Chamber Liners
Si₃N₄ ceramic substrates are used as combustion chamber liners because of their excellent heat resistance and thermal shock performance. They can withstand high-temperature combustion environments while maintaining mechanical stability. This helps improve the durability of combustion equipment.
3. Semiconductor Manufacturing Equipment
Silicon Nitride Substrates are used for protecting and isolating sensitive components in semiconductor manufacturing processes. Their thermal stability and electrical insulation properties provide reliable protection. They help maintain stable operating conditions for precision equipment.
4. High Temperature Industrial Equipment
The ceramic substrate is suitable for various high-temperature systems requiring excellent mechanical strength and thermal stability. It can maintain performance under continuous heat exposure. It provides a durable solution for demanding industrial applications.
5. Electronic and Precision Components
Silicon Nitride Substrates can be used as protective and insulating components in electronic and precision equipment. Their low thermal expansion helps maintain dimensional accuracy. They are suitable for applications requiring reliable thermal and mechanical performance.
Company Profile
Luoyang JianXun Tech Co., Ltd. specializes in the research, development, production, and supply of advanced ceramic materials and high-performance industrial components. The company provides silicon nitride ceramics, aluminum nitride ceramics, boron nitride products, alumina ceramics, and customized ceramic parts for global industrial applications. With professional manufacturing technology and strict quality control, JianXun delivers reliable ceramic solutions featuring high temperature resistance, wear resistance, insulation performance, and precision machining capability.
Payment Terms: T/T, PayPal, Credit Card, Western Union, etc.
Shipment Terms: By air, by sea, by express, or according to customer request.
Storage Conditions: Store Silicon Nitride Substrates in a dry, clean, and dust-free environment. Keep the products properly packaged to prevent moisture, contamination, scratches, and mechanical damage before use.
FAQ about Silicon Nitride Substrate
Q1: What is Silicon Nitride Substrate used for?
Silicon Nitride Substrate is mainly used as a separator plate in heat exchangers, combustion chamber liners, and protective isolation components for sensitive parts. It is suitable for high-temperature and precision industrial applications.
Q2: Why is silicon nitride ceramic suitable for substrate applications?
Silicon nitride ceramic has excellent thermal stability, low thermal expansion, high strength, and strong resistance to thermal shock. These properties allow the substrate to maintain reliable performance under demanding conditions.
Q3: What is the maximum operating temperature of Silicon Nitride Substrate?
The maximum operating temperature of Silicon Nitride Substrate can reach 1200℃. It maintains good dimensional stability and mechanical properties in high-temperature environments.
Q4: Can Silicon Nitride Substrates be customized?
Yes, JianXun can provide customized silicon nitride substrates with different dimensions, thicknesses, surface finishes, and machining requirements according to customer specifications.
Q5: What are the advantages of silicon nitride substrate compared with traditional ceramic materials?
Silicon nitride substrate offers better thermal shock resistance, lower thermal expansion, higher mechanical strength, and improved durability compared with many traditional ceramic materials.
