Product Name: Silicon Nitride Si3N4 Substrates
HS Code: 2850001900
Size: 114.3*114.3mm, 138*190mm, thickness 0.32mm
(Size can be customized by your needs.)
Applications: aerospace, high -speed rail, and new energy vehicles etc.
Description
Silicon nitride ceramics have many excellent performances such as high hardness, high strength, small thermal expansion coefficient, small high temperature creep, good antioxidant performance, good thermal corrosion performance, and small friction coefficients. It is the best ceramic material in comprehensive performance. It is widely used in the fields of aerospace, high -speed rail, and new energy vehicles. It is an important core heat dissipation material for insulation grid bipolar crystal pipes (IGBT) and silicon carbide power module (SIC MOSFET).
Features
Dimension
| Dimension | Thickness | Length and Width | ||
| 0.32mm | 114.3*114.3mm | |||
| 138*190mm | ||||
| Remarks: Customized according to customer requirements | ||||
Materials Properties
| Materials Properties | Formula | Si3N4 |
| Color | Grey/ White | |
| Density(g/cm3) | ≥3.20 | |
|
Surface roughness Ra (μm) |
0.200-0.600 | |
|
Flexural Strength (MPa) |
＞800 | |
|
Camber (Length‰) |
≤3 | |
|
Thermal Conductivity (25℃,W/m·k) |
＞80 | |
|
Coefficient of thermal expansion (10-6/K{40-400℃}) |
2.0-3.0 | |
|
Coefficient of thermal expansion (10-6/K{40-800℃}) |
2.0-3.0 | |
| Dielectric Constant | ≥17 | |
| Volume resistance | ≥1014 |
