Silicon Nitride Plate Si3N4 Ceramic Substrate

Introduction of Silicon Nitride Plate
Silicon Nitride Plate is a dense ceramic plate formed from silicon nitride powder through a high temperature sintering process. Depending on the specific application, silicon nitride plates can be manufactured in different sizes and thicknesses and can be precision machined to achieve the desired shape and surface finish. Silicon nitride plates are widely used in various fields such as mechanical engineering, electronics industry, automotive manufacturing, aerospace, and chemical industry.

Silicon Nitride Plates

 
Features of Silicon Nitride Plate
High strength and hardness: Silicon nitride plates have extremely high compressive strength and hardness, enabling them to withstand extreme working conditions.
Good abrasion resistance: Due to its hard nature, silicon nitride plate exhibits excellent abrasion resistance in friction environments.
Outstanding heat resistance: Silicon nitride sheets can remain stable in high-temperature environments, making them suitable for high-temperature application scenarios such as high-temperature furnaces and engine components.
Low coefficient of thermal expansion: Silicon nitride sheet has a low coefficient of thermal expansion, which allows it to maintain dimensional stability during temperature changes.
Excellent oxidation resistance and chemical inertness: Even at high temperatures, silicon nitride sheets do not easily oxidize or react with most chemicals.
High thermal shock resistance: able to resist rapid temperature changes without rupturing easily.
Good biocompatibility: Silicon nitride plate is harmless to human body and has potential applications in medical equipment.

Specifications of Silicon Nitride Plate

 
Applications of Silicon Nitride Plate
Mechanical engineering: Used in the manufacture of bearings, seals, pump parts, etc. These components need to have high wear and corrosion resistance.
Electronics industry: Silicon nitride plate can be used as substrate material, because it has good insulation and heat dissipation, suitable for use in power devices and microwave devices.
Automotive manufacturing: High-temperature parts such as turbocharger rotors and exhaust valves often use silicon nitride plates to improve efficiency and life.
Aerospace: The lightweight and high-strength properties of silicon nitride sheets make them ideal for aircraft engines and other aerospace components.
Chemical industry: Due to its excellent chemical stability and corrosion resistance, silicon nitride plates are used to make linings in chemical reaction vessels or other components that come into contact with corrosive media.
Medical field: Some high-end medical devices such as surgical tools may use silicon nitride plates to ensure safety and durability.
 
Packing and Storage
The product is in powder form and should be stored in a cool, ventilated place. Avoid inhalation when using it and keep away from open flames, heat sources, etc.

Packing and Storage
 

 
Company Profile
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
 
The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.
 
If you are looking for high-quality Silicon Nitride Plate please feel free to contact us or click on the needed products to send an inquiry. 

Company Profile

 
Payment Term
T/T, Western Union, Paypal, Credit Card etc.
 
Shipment Term
By air, by sea, by express, as customers request.
 
FAQs of Silicon Nitride Plate
Question 1: What are the advantages of silicon nitride plate over traditional metal plates?
Answer: Silicon nitride plate has significant advantages over traditional metal plates. First, it has higher hardness and wear resistance, which means that silicon nitride plate has a longer service life in high-wear environments. Second, silicon nitride sheet has a low coefficient of thermal expansion, which allows it to maintain dimensional stability over temperature changes, which is important for applications requiring precision tolerances. In addition, silicon nitride plates maintain good mechanical properties at elevated temperatures and show very high resistance to many chemicals, not corroding or oxidizing as easily as some metals. Finally, due to their biocompatibility and chemical inertness, silicon nitride plates are also safer and more reliable in the medical and food processing industries.
 
Question 2: Is silicon nitride sheet suitable for use as a substrate material for electronic components?
Answer: Yes, silicon nitride sheets are very suitable for use as substrate materials for electronic components. Silicon nitride plate not only has excellent electrical insulation properties, but also has good thermal conductivity, which helps electronic components to dissipate heat effectively. At the same time, its stability at high temperatures and resistance to moisture and chemicals make it possible to protect internal circuits from external factors in harsh operating environments. Therefore, in power devices, microwave devices and other high-performance electronic equipment, silicon nitride plate as a substrate material can improve the overall performance and reliability of the product.
 
Question 3: How difficult is it to process silicon nitride boards? What processing methods are available?
Answer: Silicon nitride plate is considered a difficult material to machine because of its extreme hardness. Typically, conventional metal machining tools cannot effectively cut or drill holes in silicon nitride plates. To overcome this challenge, diamond tools are usually used for precision cutting, grinding and drilling processes. Laser machining is also a viable method, especially for the fabrication of complex shapes or fine features. For unconventional shapes or parts that require particularly smooth surfaces, electric discharge machining (EDM) or chemical etching techniques can also be used. Choosing the right machining method depends on the specific application needs and the precision requirements of the final product.
 
Question 4: What is the density of silicon nitride plate? How does this affect its application?
Answer: The theoretical density of silicon nitride plate is approximately 3.21 g/cm3 . The actual product density will vary depending on the manufacturing process and additives. The lower density gives silicon nitride sheet a relatively light weight, which is especially important in areas such as aerospace, where weight reduction can improve fuel efficiency and reduce structural burden. At the same time, higher densities typically mean better mechanical properties and lower porosity, which are critical for improving the material's strength, toughness and fatigue resistance. Therefore, the density of silicon nitride panels is directly related to their performance in different application scenarios, especially in those that are weight-sensitive or require high strength and durability.
 
Question 5: What are some examples of applications of silicon nitride sheets in the automotive industry?
Answer: In the automotive industry, silicon nitride sheets are used in several critical components. For example, turbocharger rotors are a typical application for silicon nitride plates. Thanks to their excellent high-temperature stability and wear resistance, silicon nitride plates can withstand the extreme temperatures and friction caused by high-speed rotation when the turbocharger is in operation. In addition, exhaust valves are one of the most important applications of silicon nitride plates; exhaust valves made of silicon nitride plates can work stably for a long time in high-temperature environments, which reduces maintenance costs and improves engine efficiency at the same time. Silicon nitride plates are also used to manufacture other high-temperature components in engines, such as combustion chamber assemblies, which benefit from the excellent properties and durability of silicon nitride plates.