Ultra-fine silicon nitride powder Product Overview
Ultra-fine silicon nitride powder in 400 mesh is engineered for applications requiring extremely fine particles, excellent dispersibility, and superior sintering behavior. Its refined microstructure enhances packing uniformity, boosts final product density, and supports the production of advanced ceramic components with high precision.
Due to its exceptional hardness, lightweight characteristics, and thermal resistance, Si3N4 powder is widely utilized in industries where components face severe mechanical stress, temperature fluctuations, or corrosive environments.
The 400-mesh grade is particularly suitable for fine-structure ceramics, thin-walled components, and applications demanding high surface quality and minimal porosity.
Key Advantages
- Extremely fine 400-mesh particle size
- Superior densification during sintering
- Excellent uniformity and minimal defect formation
- High thermal stability and oxidation resistance
- Exceptional wear and mechanical strength
- Suitable for precision and micro-engineered ceramics
Technical Specifications
| Parameter | Value |
|---|---|
| Product | Ultra-Fine Silicon Nitride Powder 400 Mesh |
| Purity | 97–99.5% Si3N4 |
| Mesh Size | 400 mesh (custom sizes available) |
| Appearance | Fine grey-white powder |
| Hardness | ~9 on Mohs scale |
| Working Temperature | Up to 1600°C |
| Impurities | Very low oxide content |
| Documentation | COA, ISO 9001, SGS |
Main Applications
1. Fine-Grade Technical Ceramics
- high-precision structural parts
- thin-walled and micro-ceramic components
2. High-Temperature Systems
- thermal insulation layers
- components exposed to extreme heat cycles
3. Precision Mechanical Components
- wear-resistant micro parts
- seals, nozzles, and bearings
4. Electronics and Semiconductor Materials
- substrates with stable heat conduction
- insulating elements for compact devices
Why Choose 400-Mesh Ultra-Fine Si3N4?
- Excellent surface refinement for high-end ceramic processes
- Higher reactivity enables lower sintering temperatures
- Improved structural consistency in final parts
- Reduced porosity and better dimensional accuracy
- Ideal for industries requiring micro-level precision
Manufacturing Process
- Controlled synthesis of silicon nitride
- Ultra-fine milling to 400 mesh
- Multi-stage impurity removal
- Laboratory analysis (XRF, ICP, particle distribution)
- Moisture-resistant industrial packaging
Packaging & Logistics
- 25 kg sealed bags
- 500–1000 kg jumbo bags
- Palletized and moisture-protected
- Shipping via sea, road, or railway
- Dispatch time: 7–15 business days
FAQ
Q1: What makes 400 mesh suitable for precision ceramics?
Its ultra-fine structure promotes superior densification and surface quality.
Q2: Can other mesh sizes be ordered?
Yes, options from 150 to 600 mesh are available.
Q3: Are certifications available?
Yes, ISO 9001, SGS, and COA are offered.
Q4: Is sampling possible?
Yes, we provide free samples for evaluation.
Call to Action
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