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Silicon nitride is a chemical compound of silicon and nitrogen. It is a hard ceramic having high strength over a broad temperature range, moderate thermal conductivity, low coefficient of thermal expansion, moderately high elastic modulus, and unusually high fracture toughness for a ceramic. This combination of properties leads to excellent thermal shock resistance, ability to withstand high structural loads to high temperature, and superior wear resistance.
Classification:
Rough Ball: the size is 2-40MM
Grinding Ball:the size is 1.5-40MM
Bearing Ball: the size is 0.4-60MM
Physical Property and Index:
|
Types |
Data |
|
Density |
>3.2g/cm3 |
|
Si3N4 content |
>92% |
|
Flexural strength |
>600Mpa |
|
Compressive strength |
>1500Mpa |
|
Thermal conductivity(W/mk) |
16-22 |
|
Porosity |
0 |
|
Thermal expansion coeff.(RT-1000℃) |
3.2 |
|
Max temperature In air |
1400℃ |
|
Hardness(HRA) |
>92 |
Features:
1.Excellent corrosion resistance withstands attack from harsh chemicals and demanding environmental conditions.
2.Lightweight Silicon Nitride weighs 60% less than steel which reduces centrifugal force, skidding and wear under high speed and acceleration.
All goods are made based on customers'drawings.
