Silicon Nitride Ceramic U-Block - High-Temperature Resistant Structural Clamping Component
Silicon Nitride Ceramic U-Block - High-Temperature Resistant Structural Clamping Component
Product Overview
This is a reaction-sintered silicon nitride ceramic U-block featuring a deep black matte finish. The U-shaped design with three precision-ground working surfaces maintains strict perpendicularity and parallelism. This specialized U-shaped structure ensures secure workpiece positioning while accommodating thermal expansion in high-temperature environments, making it an ideal clamping solution for sintering processes and precision testing applications.
Primary Applications
• Semiconductor Industry: Wafer sintering fixtures, diffusion process carrier blocks
• Laboratory Settings: High-temperature furnace temperature measurement supports, vacuum environment support blocks
• Industrial Sector: Induction heating equipment insulation supports, automated machinery guide blocks
• Research Institutions: Material testing fixtures, specialized equipment insulation components
Product Advantages
→ Exceptional Temperature Resistance: Continuous operation up to 1200°C
→ Superior Wear Resistance: Vickers hardness up to 1400HV
→ Ultra-Low Thermal Expansion: Coefficient of thermal expansion only 3.2×10⁻⁶/°C
→ Excellent Insulation Properties: Volume resistivity >10¹⁴Ω·cm
→ Outstanding Thermal Shock Resistance: Withstands rapid temperature changes without cracking
Technical Specifications
| Performance Indicator | Specification |
|---|---|
| Material Composition | Si₃N₄ ≥95% |
| Bulk Density | 3.2-3.3 g/cm³ |
| Groove Accuracy | ±0.1mm |
| Surface Roughness | Ra ≤0.4μm |
| Parallelism Error | ≤0.05mm |
| Maximum Service Temperature | 1200°C (inert gas) |
| Compressive Strength | ≥2000 MPa |
Manufacturing Process
Raw material formulation → Dry pressing → Isostatic pressing → Reaction sintering → CNC precision grinding → Ultrasonic cleaning → Laser marking → Quality inspection → Vacuum packaging
Usage Guidelines
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Ensure complete contact between the U-groove and mounting surface during installation
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Recommended tightening torque not exceeding 25N·m using a torque wrench
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Regular cleaning of groove accumulation; recommend wiping with anhydrous ethanol
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Avoid contact with hydrofluoric acid chemicals
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For applications exceeding 800°C, recommend using gradual temperature ramping
Service Commitment
We Provide:
• 12-month product quality warranty
• Complimentary technical selection support
• Custom size manufacturing services
• 48-hour response for after-sales inquiries
• Lifetime complimentary product usage guidance
Frequently Asked Questions
Q: Are custom U-groove dimensions supported?
A: Full custom sizing available, capable of processing based on drawings or samples
Q: Can the product be used in hydrogen environments?
A: Suitable for hydrogen atmosphere applications with maximum service temperature of 1100°C
Q: What is the standard delivery lead time?
A: Standard specifications: 7 working days; Custom orders: 15-20 working days
Q: Are temperature resistance test reports provided?
A: Third-party material analysis reports available upon request with shipment
Product Features:
This U-block utilizes specialized formulation and sintering technology that enhances impact resistance while maintaining silicon nitride's superior properties. The unique stress-relief groove design at the base effectively prevents bottom cracking caused by thermal stress during prolonged high-temperature use, increasing service life by approximately 40% compared to conventional square structures.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.