High-Precision Silicon Nitride Ceramic Component with Compressive Strength ≥2200MPa Flexural Strength ≥750MPa and Thermal Conductivity 30-35W/(m*K)
This precision structural component is manufactured using gas-phase sintered silicon nitride ceramic, featuring a dark gray metallic luster surface. The innovative irregular trapezoidal design incorporates a positioning boss with precision circular holes at the top and four symmetrically distributed mounting holes on both sides of the bottom. The structure has been optimized through finite element analysis for lightweight performance without compromising strength. All hole positions maintain high precision with positional tolerances controlled within ±0.01mm.
- Exceptional Structural Stability: Compressive strength ≥2200MPa, flexural strength ≥750MPa
- Excellent Thermal Management: Thermal conductivity 30-35W/(m*K), coefficient of thermal expansion 3.3×10⁻⁶/°C
- Superior Wear Resistance: Vickers hardness ≥1500, wear rate <1×10⁻⁷mm³/N*m
- Environmental Durability: Resistant to acid/alkali corrosion (except hydrofluoric acid), oxidation resistance up to 1400°C
- Precision Machining: Key dimensional accuracy to IT5 grade, surface roughness Ra≤0.1μm
- Aerospace: Engine hot-end component brackets, navigation system mounting bases
- Semiconductor Equipment: Precision guides for lithography machines, vacuum manipulator connectors
- Automotive Industry: Turbocharger bearing seats, fuel cell bipolar plates
- Precision Instruments: High-accuracy measurement platform bases, optical system adjustment frames
- Industrial Automation: Robot end-effectors, high-speed spindle support components
| Parameter | Technical Specifications |
|---|---|
| Material Type | Gas-Phase Sintered Silicon Nitride |
| Color | Dark Gray Metallic Luster |
| Bulk Density | 3.25±0.02 g/cm³ |
| Fracture Toughness | 7.0-8.0 MPa*m¹/² |
| Maximum Service Temperature | 1400°C (Air Environment) |
| Dielectric Constant | 8.5-9.5 (1MHz) |
| Thermal Shock Resistance | ΔT≥800°C (Water Quenching) |
| Hole Diameter Tolerance | ±0.005mm (Positioning Holes) |
Nanoscale powder pretreatment → Mold design and manufacturing → Dry pressing → Isostatic pressing enhancement → Gas pressure sintering → CNC precision machining → Laser measurement verification → Non-destructive testing → Ultra-clean cleaning packaging → Quality traceability marking
- Use specialized positioning fixtures during installation for accurate alignment of mounting holes
- Recommended high-temperature alloy fastening bolts with preload not exceeding 25N*m
- Maintain 0.15-0.25mm thermal expansion gap under high-temperature operation
- Avoid hydrofluoric acid contact; limit use in strong alkaline environments to ≤150°C
- Conduct regular surface inspections and non-destructive testing every 500 hours
- 18-month extended quality assurance
- Complimentary installation guidance and technical training
- Full product lifecycle traceability support
- Customized structural optimization solutions
- 24-hour emergency technical support
A: Current maximum processable size is 300×200×150mm, with custom sizes available for special requirements.
A: Under conditions of 1200°C and 0.5mm amplitude, the service life exceeds 5000 hours.
A: Special treatments including surface coating and polishing can be provided to meet specific working condition requirements.
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