JiFeng Ceramics
Core Advantages Of Silicon Nitride Ceramic Structural Components
Extreme environmental resistance
Long-term working temperature 1300°C; thermal shock resistance ΔT ≥ 800°C.
Ultra-high strength & toughness
Bending strength ≥ 800 MPa; fracture toughness 6–8 MPa·m¹ᐟ², better impact resistance than zirconia.
Self-lubricating & wear-resistant
Friction coefficient ≤ 0.15 (dry); hardness HV10 1400–1600; service life >10× metal parts.
Lightweight & energy-saving
Density 3.2 g/cm³; 60% lighter than steel, reducing inertia and energy consumption.
Custom Applications Of Silicon Nitride Ceramic Structural Components
1. Aerospace & Military
- Radome: high wave transmittance (εᵣ=7.5), high temp & salt spray resistant.
2.New Energy & Automotive
- Fuel cell bipolar plates: H₂ permeability ≤1×10⁻⁹ cm³/s; conductivity ≥10 S/cm.
- EV bearing balls: self-lubricating, oil-free, service life ≥1,000,000 km.
3. Semiconductor & Precision Machining
- Vacuum chamber components: hermeticity ≤1×10⁻⁹ Pa·m³/s; plasma erosion resistant.
- Ceramic cutting tools: for titanium alloy, nickel-based alloy finishing.
4.Medical & Industrial Equipment
- Artificial joint balls: ISO 13485 biocompatible; service life ≥20 years.
- High-temperature bearing rings: acid/alkali/solvent resistant for chemical pumps.
