Silicon Nitride Disc
Silicon Nitride Disc, Si3N4 Ceramic Discs
Si3N4 Disc And AlN Disc
Silicon nitride is a high-quality ceramic material with the best overall performance compared to other ceramics. It has extremely high heat resistance and mechanical strength, excellent electrical insulation properties, and is often used for insulation and protection of components in high-temperature environments. Silicon Nitride Disc is commonly used in electronics manufacturing, high-temperature furnace components, chemical equipment, and other applications that require high insulation and thermal stability.
Edgetech provides customized Si3N4 ceramic products, such as Rods, Plates, Rings, Sheets, Substrates, Tubes, etc.
Silicon nitride Performance
| item | Unit | Si3N4 |
| Physical Property | ||
| Color | \ | Gray Black |
| Density | g/cm3 | >3.2 |
| Mechanical properties | ||
| Rockwell hardness | HRA90 | |
| Vickers hardness (Hv50) | HV0.5 | >1550 |
| Elastic modulus (20℃) | Gpa | 290 |
| Bending strength(20℃) | Mpa | >600 |
| Compressive strength (20℃) | Mpa | 2500 |
| Fracture toughness (20℃) | Mpam1/2 | >6.0 |
| Thermal properties | ||
| Thermal conductivity | W/(m·K) | 15-20 |
| Coefficient of thermal expansion（20℃-1000℃） | 10-6K-1 | >3.1 |
| Thermal shock stability | △T℃ | 500 |
| Specific heat capacity | KJ/kg.K | 700 |
| Maximum operating temperature（in air） | ℃ | 1200 |
| Electrical properties | ||
| Dielectric strength (insulation strength) | KV/mm | 1 |
| Volume resistance (20℃) | Ω.cm | 10^12 |
*Tested at room temperature
*The above information is for comparison only. The exact characteristics will vary depending on the manufacturing method.
Feature of Silicon Nitride ceramic
Silicon Nitride Disc
-High strength and high toughness: Silicon nitride ceramics have high strength and good toughness at both room temperature and high temperature.
-Low density: Lighter than most other ceramic materials, suitable for applications requiring lightweight.
-High wear resistance: Silicon nitride ceramics have excellent wear resistance and corrosion resistance.
-Good electrical insulation: Si3N4 still has good electrical insulation properties at high temperatures.
Applications of Silicon Nitride Disc
-Electronic manufacturing: used as an insulating layer or support structure, fixture, etc. during high-temperature processing of semiconductor manufacturing and other electronic components
-High-temperature furnaces: used in the internal structure of high-temperature furnaces, such as brackets or thermal barriers, to improve the uniformity of temperature in the furnace and reduce energy loss
-Chemical equipment: used as corrosion-resistant and high-temperature insulating components in chemical reactors or processing systems
-Tools: used to manufacture carbide-cutting tools
Packing
Silicon Nitride Discs use appropriate outer boxes and internal buffer materials, and some components are also vacuum-packed.
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