Silicon nitride ceramic balls

Si3N4 ceramic balls mainly used in high-speed silicon nitride bearings, medical-grade ceramic balls, thermal shock-resistant Si3N4 components.

Superior Toughness: Exceptional fracture toughness (6-7 MPa·m¹/²), outperforming alumina and zirconia, ideal for high-impact applications.
Lightweight & Durable: Density of 3.2-3.3 g/cm³ with extreme wear resistance, reducing energy loss in high-speed systems.
Thermal Shock Resistance: Withstands rapid temperature swings from -200°C to 1,200°C without cracking.
Electrical Insulation: Non-conductive properties prevent galvanic corrosion in electrical/electronic systems.
Biocompatibility: ISO 10993-certified for medical implants and food-grade applications.

Silicon nitride ceramic balls

Material: Si3N4

Ball diameter: 0.4mm-140mm

Ball standard: ISO3290, ASTM F2094

Precision grade: G5-G200

Extended Lifespan: 5-10x longer than steel balls in high-RPM applications.

Industry	Use Cases
Automotive	Hybrid/electric vehicle bearings, turbocharger components.
Aerospace	Guidance systems, jet engine sensors.
Medical	Orthopedic joint replacements, surgical tools.
Industrial	High-speed CNC spindle bearings, pump seals.
Energy	Wind turbine pitch control systems, fuel cell components.

Primary Components: Si₃N₄ (≥95%), sintering aids (Al₂O₃, Y₂O₃).
Corrosion Resistance:
- Acids/Alkalis: Resists HCl (≤20%), H₂SO₄ (≤50%), NaOH (≤30%) at 80°C.
- Oxidation: Stable in air up to 1,200°C with minimal surface oxidation.
- Hydrolysis: Low moisture absorption (<0.1%) ensures long-term stability.

Silicon nitride ceramic balls

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