Active Member
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[China]
Address: Jianxin Village, Dingshu Town, Yixing City, Jiangsu Province
Contact name:Liu
Yixing Feifan Ceramics Co.,Ltd |
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High temperature and strength black silicon nitride ceramic ring
Product Description
| Bulk density | Kg/m3 | 3.2×103 | ||
| Water absorption | % | 0 | ||
| Mechanical properties | Vickers hardness load 500g | (GPa) | 13.9 | |
| Flexural strength | MPa | 610 | ||
| Compressive strength | MPa | 3820 | ||
| Young's modulus of elasticity | GPa | 290 | ||
| Poisson's ratio | - | 0.28 | ||
| Fracture toughness | MPa√m | 5 | ||
| Thermal characteristics | Linear thermal expansion coefficient | 40-400℃ | ×10-16/℃ | 2.6 |
| 40-800℃ | 3.2 | |||
| Thermal conductivity | W/(m·K) | 20 | ||
| Specific heat | J/(kg·K) | 0.66×103 | ||
| Thermal shock resistance(Put into the water) | ℃ | 550 | ||
| Electrical characteristics | Dielectric strength | V/m | 10×106 | |
| Volume resistivity | 20℃ | Ω·cm | ＞1014 | |
| 300℃ | 1012 | |||
| 500℃ | 1010 | |||
| Dielectric constant (1MHz) | - | - | ||
| Dielectric loss angle (1MHz) | (×10-4) | - | ||
| Loss factor | (×10-4) | - | ||
| Chemical properties | Nitric acid (60%) 90℃ | WT Loss Mg/cm2/day | 1.00 | |
| sulfuric acid (95%) 95℃ | 0.40 | |||
| Sodium hydroxide (30%) 80℃ | 0.36 | |||
Advantages
If a silicon nitride ceramic that is resistant to high temperatures and does not easily transfer heat is used to manufacture the heating surface of the engine component, not only the quality of the diesel engine can be improved, fuel is saved, but also thermal efficiency can be improved. The silicon nitride ceramic can be used as a gas turbine combustion chamber, a silicon nitride mechanical seal ring (silicon nitride ring), an electromagnetic pump pipe (silicon nitride tube) for conveying aluminum liquid, a valve, a permanent mold, a molten steel separation ring, and the like. Si3N4 ceramic is a covalent bond compound.
Packing & Delivery
We produce according to customer's requirement
Therefore,we need you to send us specific inquiry.
Then we can quote price and detailed
information according to your specific technical data and
requirements.
Parameter includes:
1 . What's the material you are going to deal with?
2 . What are the physical characteristics of the material?
Such as the size,tolerance,temperature,density,etc
