Silicon Nitride (Si₃N₄) Customized Pump Components
- Applications:
- 1. Wear-resistant components for pumps
- 2. Ceramic bearings and heat exchangers
- 3. Chemical pump components and various nozzles
- 4. High-temperature cutting tools and refractory plates
- 5. Wear-resistant mechanical components
- 6. Steelmaking reducing agents and lightning arresters
- 7. Other spare parts for semiconductor manufacturing
- Applicable Processing Methods:
- 1. Diamond grinding and cutting processes
Advanced Si₃N₄ Ceramic Platform
Ultra-thin, High Strength, Low Thermal Expansion, High Insulation.
Specializing in Si₃N₄ (Silicon Nitride) high-performance ceramic materials and ultra-thin precision substrates, providing high-reliability material solutions for semiconductor testing, precision electronics, and advanced packaging.
Key Features:
● Excellent wear resistance.
● Excellent corrosion resistance.
● Excellent oxidation resistance.
● High thermal conductivity with superior heat dissipation performance.
Material Density! White Light Interferometry (WLI) Test Report
White Light Interferometry (WLI) is a high-precision optical measurement technology capable of inspecting micro-topography on material surfaces at nanometer resolution.
When measuring the mirror-polished surface of high-density ceramic components, WLI can accurately capture surface micro-defects such as pits, scratches, or voids.
Shiuh Cheng's Si₃N₄ / SiC components were finely polished to a mirror finish and analyzed using WLI scanning. The results indicate that the surface is continuous and smooth, with no observable voids or micro-cracks.
Since WLI achieves a vertical resolution down to 1 nm and a lateral resolution of 300 nm, any internal porosity extending to the surface would manifest as height variations in the interferogram.
However, no anomalies were detected in this test, demonstrating that these Si₃N₄ / SiC components feature extremely low porosity, a dense material structure, and excellent manufacturing quality.
Through WLI non-destructive testing, we can quantify the uniformity and integrity of ceramic surfaces, establishing a scientific foundation for quality control and process optimization. The results confirm that this Si₃N₄ / SiC sample meets high-density standards, making it ideal for high-performance key applications.
SGS Test Report (Pending Official Release)
Silicon Nitride (Si₃N₄) Technical Specifications
| Main Item | Unit | Test Standard |
|---|---|---|
| Density | g/cm3 | 3.2 |
| Elastic Modulus | GPa | 300 |
| Coefficient of Thermal Expansion | 10-6 K-1 | 3.2 |
| Hardness (HV) | MPa | 1600 |
| Fracture Toughness | MPa·m1/2 | 7.0 |
| Flexural Strength (Room Temp.) | MPa | 720 |
| Flexural Strength (700℃) | MPa | 450 |
| Compressive Strength (Room Temp.) | MPa | 2500 |
| Poisson's Ratio | 0.25 | |
| Thermal Conductivity | W/(m·K) | 20 |
| Electrical Resistivity | Ω·cm | ≥10¹⁵ |
| Max. Operating Temperature (No Load) | ℃ | 1100 |
| Acid and Alkali Corrosion Resistance | High |