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Brand Name : China
Model Number : 008
Place of Origin : Suzhou,China
MOQ : 100pcs
Price : Negotiable
Payment Terms : T/T
Supply Ability : 10000 Piece/Pieces per Month
Delivery Time : 25 days
Packaging Details : Box, Carton, Wooden, Bag etc. Customized package
Product name : Wear Resistance Black Silicon Nitride Ceramic Grinding Ball
Material : Silicon Nitride
Application : Industrial Ceramic
Fracture toughness : 5.0~7.0
Water Absorption : 0%
Electrical Insulation : excellent
Density : 3.2g/cm3
Wear Resistance Black Silicon Nitride Ceramic Grinding Ball
Description:
Silicon Nitride Ceramic Balls (Si3N4) ceramic high strength, good wear resistance, high stiffness, corrosion resistance, high temperature, suitable for high temperature structural materials. Comparing the three types of ceramic materials, Si3N4 integrated superior performance, has become the material of choice for ceramic bearings.
Technical Parameters:
Mechanical behavior | Unit | Al2O3 | SiC | Si3N4 | ZrO2 |
Colour | ------- | Light yellow | black | black | white,black |
Density | g/cm3 | 3.95 | 3.15 | 3.2 | 6 |
Bending strength | MPa | 300~400 | 400~500 | 800~1200 | 950~1200 |
Elastic modulus E | GPa | 380 | 350 | 300-320 | 210 |
Poisson's ratio | 0.22 | 0.14 | 0.26 | -------- | |
Hardness | Hv | 1800 | 2000~2500 | 1400~1700 | 1100~1300 |
HRC | 80 | 85~90 | 75~80 | 70~75 | |
Fracture toughness | MPa·m1/2 | 3.0~4.0 | 3.0~4.0 | 5.0~7.0 | 8.0~10.0 |
Maximum use temperature | ℃ | 1000 | 1300 | 400 | 400 |
Thermal expansion coefficient | 10-6/℃ | 8.4 | 4 | 3.3 | 10.3 |
G5 | G10 G16 | G20 G28 G40 | |
ClassⅠ | Liquid oxygen pump,Active shaft bearing | The key parts of aerospace equipment | |
ClassⅡ | Vaccum equipment,high speed instrument,mechanical devices,high performance and the most advanced contacting spherical propeller | Motor,medium-low precision star bearing | Testing bearing ball,separating bearing ball |
ClassⅢ | Sport,entertrainment,food processing | Mechanical devices |
Advantages:
1. High Strength over a wide temperature range.
2. High Fracture toughness.
3. High Hardness.
4. Outstanding Wear Resistance ,both impingement and frictional modes.
5. Good Thermal Shock Resistance.
Application:
1. Rotating bearing balls and rollers.
2. Cutting tools.
3. Jet Engine moving parts.
4. Jet Engine wear parts.
5. Turbine blades, vanes, buckets.
6. Metal tube forming rolls and dies.
7. Precision shafts.
More pictures:
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Wear Resistance Black Machining Ceramic Parts Silicon Nitride Ceramic Grinding Ball Images |