Made of silicon nitride, these ceramic balls are distinguished by their exceptional lightness and mechanical properties, combining tenacity and corrosion resistance. Ideal for applications requiring electrical insulation and self-lubrication, they are also resistant to thermal shocks. Our balls meet the ASTM F 2094 Class II standard, guaranteeing superior quality. Available in France at Marteau- Lemarie for quick delivery.
Physical characteristics of silicon nitrate ball (si3n4)
| Ownership | Value | Unit |
|---|---|---|
| Density | 3.26 | g/cm3 |
| Young Module | 300 | GPA |
| Thermal expansion coefficient | 3.4 (T=0-100°C) | × 10−6 /°C |
| Thermal conductivity | 23 | W/m·K |
| Volume resistivity | >10^13 | D·m |
| Specific heat | 740 | J/kg·K |
| Relative magnetic permeability | <~1 | — |
| Magnetic behaviour | Diamagnetic | — |
| Friction coefficient | 0.1 | — |
Hardness and mechanical strength of silicon nitrate ball (si3n4)
| Ownership | Value | Unit |
|---|---|---|
| Hardness | 1400-1600 | HV |
| Exercise temperatures | 0/1200 | ° C |
| Exercise temperatures | 32/2192 | °F |
Diameters and grades available for silicon nitride ball (si3n4)
| Parameter | Value |
|---|---|
| Minimum diameter | 0.4 mm — 1/64′′ |
| Maximum diameter | 200 mm — 8′′ |
| Precision standards | ISO 3290-2 (see International Standards section) |
Corrosion resistance of silicon nitrate ball (si3n4)
Excellent corrosion resistance in almost all environments except acidic (except sulphuric acid) and basic high concentration solutions.
Applications of silicon nitrate ball (si3n4)
Special/high speed bearings, vacuum pumps, compressors, mechanical centrifuges, shafts/mandrels, ball recirculation screws, flow meters, measuring instruments. Employees in the aerospace and military industry.
