Silicon Carbide Ceramic Shaft Product Introduction:
Silicon carbide ceramic shafts are mechanical components made from silicon carbide (SiC) material, possessing the following significant characteristics:
1. High hardness: Mohs hardness reaches 9.5, second only to diamond and boron carbide, offering excellent wear resistance.
2. High temperature resistance: Maintains strength at temperatures above 1600℃, exhibiting excellent high-temperature stability.
3. High thermal conductivity: Thermal conductivity reaches 80-120 W/(m·K), superior to most metals.
4. Thermal shock resistance: Can withstand sudden temperature changes, suitable for environments with drastic temperature fluctuations.
5. Chemical inertness: Exhibits extremely strong corrosion resistance to strong acids (except hydrofluoric acid) and strong bases.
6. Mechanical strength: Bending strength at room temperature reaches 600-900 MPa.
Application areas
Silicon carbide ceramic shafts have wide applications in various industrial fields:
Application areas | Application Scenarios | Advantages demonstrated |
High-temperature metallurgy | Furnaces, crucibles, burner nozzles | Stable operation at temperatures above 1600℃. |
Mechanical manufacturing | Bearings, guide rails, sealing rings | High wear resistance, low coefficient of friction |
semiconductor | Wafer processing fixtures, heat dissipation substrates | High temperature resistance, chemical corrosion resistance |
Chemical Engineering and Environmental Protection | Pumps and valves, pipe linings, filters | Strong corrosion resistance |
Nuclear energy engineering | Nuclear reactor components, fuel cladding | Neutron radiation resistant |
新能源汽车 | Motor bearings, braking components | High temperature stability |
Advantages Compared to Other Materials
Compared to other ceramic shafts, silicon carbide ceramic shafts offer unique advantages:
Performance indicators | Silicon carbide ceramics | Zirconia ceramics | Silicon nitride ceramics |
Hardness (Mohs scale) | 9.5 | 8.5 | 9.0 |
Thermal conductivity (W/m·K) | 80-120 | ~5 | 30-50 |
Maximum operating temperature | >1600℃ | 300-400℃ | 1200-1400℃ |
Flexural strength (MPa) | 600-900 | 500-700 | 500-700 |
Corrosion resistance | Very strong (except for HF) | powerful | good |
coefficient of friction | 0.1-0.2 | 0.05-0.1 | 0.01-0.02 |
Supports custom specifications.
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