Laboratory Si3n4 Silicon Nitride Ceramic Grinding Balls For Ball Mill 10mm
Price:
Negotiable
MOQ:
1kg
Delivery Time:
within 15days
Brand:
Zhongli
Product Description
Laboratory Si3N4 Silicon Nitride Ceramic Grinding Balls For Ball Mill 10mm
Lighter Than Steel, Stronger Than Zirconia: Silicon Nitride Balls Explained
In the realm of advanced materials, silicon nitride balls stand out as revolutionary components offering unmatched strength and lightweight properties that surpass traditional materials like steel and zirconia. These precision-engineered ceramic balls deliver exceptional performance across demanding industrial applications.
Key Properties of Silicon Nitride Balls
- High Heat Resistance: Withstands temperatures up to 1800°F without losing strength or hardness
- Low Friction: Reduced wear and tear improves system efficiency and lifespan
- Lightweight: Approximately 58% lighter than steel, reducing centrifugal force in high-speed operations
- Chemical Resistance: Chemically inert with excellent corrosion resistance in harsh environments
Performance Comparison
| Property | Silicon Nitride (Si3N4) | Steel (440C) | Zirconia (ZrO2) | Alumina (Al2O3) |
|---|---|---|---|---|
| Density (g/cm³) | 3.2 | 7.8 | 6.0 | 3.9 |
| Hardness (HV) | 1,400-1,600 | 700-900 | 1,200-1,300 | 1,500-1,800 |
| Fracture Toughness (MPa*m½) | 6-7 | 15-20 | 7-10 | 3-4 |
| Compressive Strength (GPa) | 2.5-3.5 | 2.0-2.5 | 2.0-2.3 | 2.0-3.0 |
Product Specifications
Silicon Nitride Ceramic Balls are the ideal solution for bearing applications, offering numerous advantages over traditional steel materials including high mechanical strength, low wear loss, excellent self-lubrication, and superior corrosion resistance.
Physical Properties
| Chemical Composition: | Si3N4≥95% |
| Bulk Density: | 3.2±0.05g/cm3 |
| Elastic Modulus: | 350GPa |
| Hardness Vickers: | 1870HV |
| Bending Strength: | 780MPa |
| Fracture Toughness: | 7.2MPa*m1/2 |
| Thermal Expansion Coefficient: | 3.2 10-6/K |
| Thermal Conductivity: | 25W/(m*K) |
Available Sizes and Grades
| Size (mm) | Φ0.8-180 |
|---|---|
| Grade | Vdws | SPH | Vdwl | Ra |
| G3 | 0.05-0.08 | ≤0.08 | <0.13 | 0.01 |
| G5 | 0.08-0.13 | ≤0.13 | <0.25 | 0.014 |
| G10 | 0.15-0.25 | ≤0.25 | <0.5 | 0.02 |
| G16 | 0.2-0.4 | ≤0.4 | <0.8 | <0.025 |
| G20 | 0.3-0.5 | ≤0.5 | <1 | <0.032 |
| G100 | 0.4-0.7 | 0.4-0.7 | <1.4 | <0.0105 |
Industrial Applications
- Aerospace: Engine components, turbines, and lightweight systems
- Automotive: Electric motors, high-speed bearings, and turbochargers
- Industrial: Hybrid bearings, semiconductor manufacturing equipment
- Renewable Energy: Wind turbine components
- Medical: MRI machines and diagnostic equipment
Global Shipping Cases
Ship to South Korea
Ship to Spain
Frequently Asked Questions
What sizes and tolerances are available?
- Diameter range: 0.5mm to 50mm (custom sizes possible)
- Sphericity: As low as 0.1 µm (Grade 5 for ultra-precision bearings)
- Surface finish: Ra < 0.02µm (mirror polish for low friction)
Are silicon nitride balls FDA-approved for medical use?
Yes! Si3N4 is biocompatible (ISO 6474-1) and used in spinal implants, dental devices, and joint replacements due to its antibacterial properties.
How do I choose the right Si3N4 balls for my application?
Consider these factors:
- Load & speed requirements (dynamic/static stress)
- Temperature range (Si3N4 excels in high heat)
- Chemical exposure (resistant to most acids/alkalis)
- Electrical insulation needs (non-conductive)
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Guangzhou Zoli Technology Co.,Ltd.
Location
Room 702A, No. 585, Airport Road, Tangjing Street, Baiyun District, Guangzhou City, Self-compiled 2341
Contact Person
Ain Qiu