A dedicated silicon nitride powder for high-frequency packaging and photovoltaic release-agent applications, prepared by a proprietary process. β-phase content reaches above 99 % with high purity, well-controlled particle morphology, good flowability and a high filling ratio. Its thermal and dielectric performance also makes it suitable as a high-thermal-conductivity filler.
Key features
- β-phase content > 99 %
- High purity, fine and uniformly distributed particles
- Large specific surface area and high surface activity
- Low bulk density, good flowability
Applications
High-frequency packaging, photovoltaic release agents, high-thermal-conductivity fillers.
Typical certificate of analysis — DHG-GCXF-01
| Test item | Specification | Test method | Measured | Standard |
|---|---|---|---|---|
| α-phase content (%) | ≥ 92 | XRD | 94.3 | JIS R1640 |
| Oxygen content O (%) | ≤ 1.5 | Infrared absorption | 1.32 | ASTM C1494 |
| Nitrogen content N (%) | ≥ 38.5 | Infrared absorption | 38.9 | ASTM C1494 |
| Particle size D50 (µm) | ≤ 10 | Laser diffraction | 9.7 | GB/T 19077.1 |
| Iron Fe (ppm) | ≤ 5 | ICP-AES | 374 | SG-GC-07.1-2009 |
| Aluminium Al (ppm) | ≤ 5 | ICP-AES | 231 | SG-GC-07.1-2009 |
| Calcium Ca (ppm) | ≤ 5 | ICP-AES | 306 | SG-GC-07.1-2009 |
Typical values — contact us for the latest certificate of analysis.