Si3N4 Product Overview
Si3N4 silicon nitride powder is a high-performance engineering material designed for applications requiring exceptional strength, thermal stability, and resistance to chemical attack. Known for its combination of low density, high hardness, and superior mechanical integrity, Si3N4 remains a preferred powder for producing advanced ceramics, wear-resistant components, and high-temperature structural parts.
Its controlled particle size distribution and high material purity allow for excellent sinterability, reduced porosity, and enhanced reliability in demanding industrial environments. Si3N4 powder offers long-term stability in thermal cycling, oxidation resistance, and mechanical durability, making it suitable for a wide range of technical applications.
Key Advantages
- Excellent strength-to-weight ratio
- Outstanding thermal shock resistance
- High hardness and wear resistance
- Chemical inertness in harsh environments
- Compatible with ceramic and composite systems
- Low porosity after sintering
Si3N4 Technical Specifications
| Parameter | Value |
|---|---|
| Product | Si3N4 Silicon Nitride Powder |
| Purity | 95–99% Si3N4 |
| Form | Fine powder |
| Particle Size | Available: 150–325 mesh / custom sizes |
| Hardness | ~9 on Mohs scale |
| Working Temperature | Up to 1600°C |
| Appearance | Grey/white powder |
| Impurities | Low oxide content |
| Certificates | COA, ISO 9001, SGS |
Main Applications
1. Engineering and Structural Ceramics
- high-strength components
- precision technical parts
- impact-resistant elements
2. Refractories & High-Temperature Systems
- thermal protection layers
- furnace linings and components
3. Mechanical and Industrial Equipment
- bearings, nozzles, bushings
- wear-resistant parts for high-load systems
4. Electronics & Thermal Management
- insulating materials
- heat-dissipation substrates
Why Choose Si3N4 Silicon Nitride Powder?
- Consistent performance in demanding industrial conditions
- Strong material stability during shaping and sintering
- High purity ensures predictable mechanical properties
- Suitable for a wide range of advanced ceramic applications
- Proven durability in real-world industrial environments
Manufacturing Process
- Controlled synthesis of Si3N4
- Micro-milling and particle classification
- Removal of metallic and oxide impurities
- Laboratory testing (XRF, ICP, particle analysis)
- Industrial packaging and final quality inspection
Packaging & Logistics
- 25 kg bags
- 500–1000 kg jumbo bags
- Moisture-protected packaging
- Transport by sea, land, or railway
FAQ
Q1: Is Si3N4 powder suitable for high-strength ceramics?
Yes. It offers exceptional performance for precision and structural ceramic components.
Q2: What mesh sizes are available?
Standard options are 150–325 mesh; custom sizes are possible.
Q3: Do you provide certification?
Yes. ISO 9001, SGS, and COA are available.
Q4: Can I request a sample?
Yes, samples are available upon request.
Call to Action
Contact us today for pricing, samples, or technical guidance on Si3N4 silicon nitride powder. We deliver reliable quality, stable supply, and professional material support for industrial applications.
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