Silicon Carbide (SiC) Parts
Silicon carbide (SiC) shares many characteristics with diamond—it is one of the lightest, hardest, and strongest technical ceramic materials. It possesses excellent thermal conductivity, acid resistance, and low thermal expansion. Silicon carbide is an excellent material when physical wear is a significant consideration, due to its exceptional erosion and abrasion resistance. This makes it suitable for various industrial applications including nozzles, sandblasting nozzles, and cyclone separator components.
Pressureless Sintered Silicon Carbide Ceramics
Mechanical Properties
| Property |
Unit |
Silicon Carbide |
| Density |
g/cm³ |
3.15 |
| Vickers Hardness |
Hv0.5 |
2650 |
| Flexural Strength |
MPa |
450 |
| Compressive Strength |
MPa |
2650 |
| Elastic Modulus |
GPa |
430 |
| Fracture Toughness |
MPa·m¹/² |
4 |
| Poisson's Ratio |
|
0.14 |
| Young's Modulus |
GPa |
430 |
| Silicon Carbide Raw Material Purity |
% |
99 |
Thermal Properties
| Property |
Unit |
Silicon Carbide |
| Thermal Conductivity at 25°C |
W/mK |
110 |
| Melting Point |
°C |
2800 |
| Specific Heat |
J/g·K |
0.8 |
| Linear Expansion Coefficient |
10⁻⁶/K |
4 |
Electrical Characteristics
| Property |
Unit |
Silicon Carbide |
| Dielectric Constant |
1MHz |
10 |
| Breakdown Voltage |
V/cm |
1×10⁶ |
| Dielectric Loss |
1MHz |
0.001 |
| Resistivity |
Ω·cm |
10²-10⁶ |
