|
Material |
Unit |
Silicon Nitride |
|
Color |
- |
Black |
|
Max. Operating Temperature |
℃ |
1100 |
|
Vickers Hardness |
GPa |
15 |
|
Flexural Strength |
MPa |
900-1000 |
|
Compressive Strength |
MPa |
3500 |
|
Young's Modulus |
GPa |
320 |
|
Poisson's Ratio |
- |
0.26 |
|
Fracture Toughness |
MPa·m1/2 |
7 |
|
Coefficient of Thermal Expansion (40-400°C) |
*10-6/℃ |
3.3-3.5 |
|
Thermal Conductivity |
W/(m·K) |
20-23 |
|
Volume Resistivity |
Ω·cm |
≥1014 |
1. Hybrid Bearings: Used in hybrid ball bearings, which combine steel races with silicon nitride balls. These bearings offer reduced weight, higher speed capabilities, and longer life spans compared to all-steel bearings.
2. Aerospace Industry: Employed in aircraft engines, where their low density and high strength are crucial for reducing weight and improving fuel efficiency.
3. Automotive Industry: Utilized in high-performance and electric vehicle components like turbochargers, fuel pumps, and wheel bearings. They help reduce friction and improve efficiency and longevity.
4. Machine Tooling: Used in high-speed spindles and precision machinery, providing high rigidity, low thermal expansion, and wear resistance.
5. Wind Turbines: Applied in the bearings of wind turbines to withstand high loads and harsh environmental conditions, improving reliability and maintenance intervals.
6. Medical Devices: Incorporated into medical instruments and implants due to their biocompatibility, low wear rates, and corrosion resistance.
7. Semiconductor Manufacturing: Used in equipment for semiconductor manufacturing, benefiting from their high precision, cleanliness, and resistance to wear and corrosion.
8. Chemical Processing: Employed in pumps, valves, and other equipment that handles corrosive chemicals, leveraging their chemical inertness and resistance to wear.
9. Sports Equipment: It is found in high-performance sports equipment like bicycle wheel bearings and skate bearings, where their lightweight and durability enhance performance.
10. Energy Sector: Utilized in various energy applications, including bearings for gas turbines and other high-speed rotating machinery.