Silicon nitride Product Overview
Silicon nitride (Si3N4) powder is a premium ceramic material known for its exceptional combination of mechanical strength, fracture resistance, and thermal stability. This advanced powder is used to manufacture components that must withstand extreme operating environments, repeated thermal cycling, and abrasive wear.
Si3N4's unique crystal structure provides a high strength-to-weight ratio, excellent shock resistance, and minimal deformation under thermal loads. Its versatility makes it suitable for industries requiring durable, lightweight, and high-precision materials.
Key Advantages
- High mechanical and thermal strength
- Excellent resistance to corrosion and oxidation
- Lightweight structure with high hardness
- Low coefficient of thermal expansion
- Outstanding performance in demanding environments
- Enhanced reliability after sintering
Technical Specifications
| Parameter | Value |
|---|---|
| Product | Silicon Nitride Powder Si3N4 |
| Purity | 95–99% Si3N4 |
| Appearance | White/gray powder |
| Particle Sizes | 150–400 mesh available |
| Hardness | ~9 on Mohs scale |
| Thermal Stability | Up to 1600°C |
| Impurities | Very low oxide content |
| Certifications | ISO 9001, SGS, COA |
Main Applications
1. Advanced Ceramics Manufacturing
- structural and wear-resistant parts
- high-precision technical components
2. High-Temperature & Refractory Systems
- furnace elements
- thermal protection components
3. Mechanical Engineering & Industrial Equipment
- nozzles, bushings, bearings
- components in high-load or high-speed mechanisms
4. Electronics & Semiconductor Materials
- insulating substrates
- thermal management parts
Why Choose Si3N4 Powder?
- Consistent performance for industrial applications
- High material purity enables superior sintering outcomes
- Excellent dimensional stability in fired components
- Suitable for multiple forming technologies (pressing, injection molding, slip casting)
- Proven long-term durability across engineering industries
Manufacturing Process
- Controlled synthesis of silicon nitride
- Milling and precise particle classification
- Impurity removal using magnetic and chemical filtration
- Laboratory testing (XRF, ICP, particle distribution)
- Moisture-protected packaging and export preparation
Packaging & Logistics
- 25 kg sealed kraft bags
- 500–1000 kg jumbo bags
- Palletized and moisture-protected shipping
- Global logistics via sea, rail, or road
- Standard dispatch: 7–15 days
FAQ
Q1: What makes Si3N4 suitable for advanced ceramics?
Its combination of strength, thermal resistance, and low thermal expansion.
Q2: Are multiple mesh sizes available?
Yes-from 150 to 400 mesh, with custom sizing on request.
Q3: Can you provide documentation?
ISO 9001, SGS reports, and COA are available.
Q4: Are sample quantities offered?
Yes, we can provide samples for testing and evaluation.
Call to Action
Contact us for pricing, samples, or technical support regarding Silicon Nitride Powder Si3N4. We offer consistent quality, reliable supply, and full engineering assistance for industrial applications.
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