Детальное описание продукта
High-purity silicon nitride (Si3N4) powder is a premium engineering material valued for its combination of exceptional strength, thermal stability, and chemical inertness. Manufactured with strict quality control, this powder delivers highly reliable performance in ceramic and composite applications where material integrity directly impacts service life and product efficiency.
Its high purity enhances sintering efficiency, reduces porosity, and improves final mechanical properties. Si3N4 powder is used extensively across industries requiring robust, heat-resistant materials capable of withstanding mechanical wear, thermal cycling, and corrosive environments.
Key Advantages
- Excellent thermal shock resistance
- High mechanical strength and rigidity
- Low density with superior hardness
- Chemical stability in harsh conditions
- Enhanced densification during sintering
- Ideal for high-performance ceramic formulations
Технические характеристики
| Parameter | Value |
|---|---|
| Product | High-Purity Silicon Nitride Si3N4 Powder |
| Purity | 98–99.5% Si3N4 |
| Form | Fine powder |
| Particle Sizes | 150–400 mesh options available |
| Color | Greyish white |
| Hardness | ~9 on Mohs scale |
| Working Temperature | Up to 1600°C |
| Impurities | Low oxide and metal content |
| Certification | ISO 9001, SGS, COA |
Main Applications
1. Advanced Structural Ceramics
- high-strength parts
- wear-resistant assemblies
2. Refractory and Thermal Systems
- insulation layers
- furnace linings and protective elements
3. Industrial Engineering Components
- precision bearings, nozzles, bushings
- components used in heavy-load environments
4. Electronics and Thermal Management
- high-performance substrates
- insulating parts with stable heat conduction

Why Choose High-Purity Si3N4 Powder?
- Proven consistency across production batches
- Superior material performance for demanding industries
- High-purity profile improves sintering and mechanical outcomes
- Compatible with various forming technologies
- Strong track record in industrial ceramic and composite sectors
Manufacturing Process
- High-purity synthesis of silicon nitride
- Fine milling and particle-size control
- Removal of metallic and oxide contaminants
- Laboratory-quality testing (XRF, ICP, particle analysis)
- Export-ready packaging with moisture protection
Packaging & Logistics
- 25 kg sealed bags
- 500–1000 kg jumbo bags
- Palletizing and moisture protection
- Shipping by sea, road, or rail
- Standard dispatch within 7–15 days
FAQ
Q1: What benefits does high-purity Si3N4 provide?
Improved densification, higher strength, and superior thermal resistance.
Q2: Which mesh sizes are available?
Standard options range from 150–400 mesh with custom sizing available.
Q3: Are certifications provided?
Yes-ISO 9001, SGS, and COA.
Q4: Can sample quantities be requested?
Absolutely. Samples are available for testing and evaluation.
Call to Action
Contact us today for pricing, samples, or technical assistance regarding High-Purity Silicon Nitride Si3N4 Powder. We deliver consistent quality, reliable supply, and expert technical support for advanced ceramic applications.

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