Diameter range: φ0.1-2.0mm
Price upon request, customization available.
 
Manufactured using proprietary extrusion molding and vacuum sintering techniques, Stone Peak's silicon nitride microbeads exhibit a density ≥ 3.2 g/cm³ and offer exceptional wear resistance, over 10 times that of nano-zirconia beads and nearly 20 times that of high-purity zirconia beads. With a 24-hour wear rate as low as one part per million, material loss is virtually negligible. Their low grinding consumption minimizes media wear and contamination, making them ideal for producing ultra-fine powders with high purity. Optimized for ultra-fine dispersion of high-performance materials, particularly in processes requiring exceptional product purity and particle fineness.
 
1. Advantages of Silicon Nitride Beads
Ultra-Fine Grain Structure: Engineered from highly refined raw materials, enabling minimal wear and extended service life.
High Density: Compact internal structure delivers excellent impact resistance and prevents bead breakage during operation.
Consistent Size Distribution: Ensures stable grinding performance and consistent processing outcomes.
Smooth Surface Finish: Reduces self-wear and media-induced contamination.
 
2. Advanced Manufacturing Technology
Produced via proprietary extrusion molding for uniform bead structure and high packing density.
Vacuum sintered to achieve a density > 3.2 g/cm³.
Offers wear resistance 10 times greater than zirconia beads and nearly 20 times greater than high-purity zirconia, delivering superior cost-performance.
Supports higher linear velocities, improving ultra-fine dispersion efficiency by over 30%.
With a density approximately 53% that of zirconia beads, it reduces energy consumption and thermal load during high-speed milling.
 
3. Applications
Silicon nitride beads (φ0.1–2.0 mm) are ideal for ultra-fine dispersion of advanced materials, particularly in applications demanding high product purity and submicron particle size control.
 
4. Parameters Table
Index
Unit
Silicon Nitride Beads
Bead Size Distribution
mm
Φ0.1-2.0
Density
g/cm³
≥3.2
Crushing Strength
Kgf
≥50(Φ1.0mm)
Sphericity
Ds/Dl
>0.97
Surface Self-wear Rate
ppm/h
<1.6
Internal Self-wear Rate
ppm/h
<1.5
Internal Porosity
%
<0.2
Size tolerance rate
%
≈0.5