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| Categories | Silicon Nitride Products |
|---|---|
| Brand Name: | Cersol |
| Place of Origin: | China |
| Certification: | MSDS, TDS |
| Packaging Details: | BAGS, BARRELS, CARTONS |
| Delivery Time: | USUALLY 1 MONTH |
| Payment Terms: | T/T IN ADVANCE |
| Material: | siliocn nitride |
| Color: | black |
| Size: | different sizes, different uses. |
| Company Info. |
| Zhuhai Cersol Technology Co, Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
Product characteritics
Silicon Nitride material is one of the hardest materials in the world with extrusion molding process and hot isostatic pressing sintering adopted during the production. Its high strength, wear resistance, temperature resistance, corrosion resistance, acid resistance and alkali resistance can well ensure the purity of materials.
Application
It is a precision ceramic sintered at high temperature in a non-oxidizing atmosphere. It has five properties, high strength, high wear resistance, high temperature resistance, corrosion resistance, acid and alkali resistance. So it can be used in seawater for a long time. It also has self-lubricating properties, and it can be used in environments with high pollution of non-lubricating media.
Advantages of Silicon Nitride Bearing balls:
| Properties | Ordinary Steel Ball | Silicon Nitride Balls | Evaluations |
| Density(kg/cm3) | 7800 | ≥3220 | The lower the density, the less energy loss |
| Young's Modulus (GPa) | 210 | ≥300 | The higher the modulus number, the smaller the deformation |
| Vickers-hardness(GPa) | 8 | 14-18 | The higher the hardness, the better the rigidity |
| Toughness (MPa·m) | 16-25 | 6-8 | The higher the toughness, the better the impact resistance |
| Thermal Expansion Rate(10-6/K) | 12 | ≤3 | The lower the thermal expansion rate, the smaller the deformation |
| Specific Heat Capacity(J/kg·K) | 450 | 650 | The larger the specific heat, the smaller the temperature change |
| Use Upper Limit Temperature(℃) | 230 | 1000 | The higher the online temperature, the wider the application field |
| Minimum Surface Roughness(μm) | 0.02 | 0.004-0.005 | The smaller the surface roughness, the smoother |
| Compressive Strength (MPa) | 7.5 | ≥3000 | The higher the compressive strength, the longer the life |
| Resistivity (Ω·cm) | 0.001 | 10^14 | The higher the resistivity, the better the insulation |
Technical Parameters
| ltem | Parameter | |
| Physical properties | Density (g/cm³) | ≥3.2 |
| Elastic Modulus(GPa) | 300-320 | |
| Hardness (HV ) | ≥12 | |
| Flexural strength(MPa) | 700 | |
| fracture toughness (MPa.m³) | 6 | |
| thermal expansivity (×106/k) | 3.2 | |
| Upper temperature limit of use(℃) | 1200 | |
| Thermal Shock Resistance (AT℃) | 600-700 | |
| insulativity | insulation | |
| Acid and alkali corrosion resistance | high | |
| Properties of grinding media | Particle distribution(mm) | 0.6+0.1mm |
| Filling dense(g/cm³) | ≥1.8 | |
| Average Crushing Load(Kgf) | ≥20 | |
| Sphericity(DS/DL) | 98% | |
| surface self- abrasion(PPm/h) | 1.5 | |
| internal self- abrasion(PPm/h) | 1.7 | |
| Internal porosity(%) | 0.02 | |
| Error rate of particle size(%) | 0.1 |
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