Seal Alumina Ceramic Ring Alumina Ceramic Parts For Structure Accessories
Customized Alumina Ceramic Seal Ring for Structure Accessories
Description:
Alumina ceramics have good mechanical strength, high hardness and good wear resistance. Excellent insulation and chemical stability. Good high temperature resistance, excellent dielectric. It has high thermal conductivity and good conductivity.
Technical Parameters:
| Test item/Unit | Numerical Value | Test item/Unit | Numerical | ||||
| Product Material | Alumina | Zirconia | Product Material | Alumina | Zirconia | ||
| Component Content % | ≥99% | ≥95% | ≥90% | Volume Resistance MM | >1012 | >1012 | >1012 |
| Sintering Temp ℃ | 1780-1800 | 1650-1680 | 1550-2600 | Bending Strength Mpa | 400 | 320 | 1100 |
| Specific Gravity g/cm3 | ≥3.8 | ≥3.6 | >6 | Thermal Expansion Coefficient'10' | 6.8-8.0 | 6.2-8.5 | 6.9-10 |
| Breakdown Voltage Strength kv/mm |
15 | 15 | 15 | Roughness um | ≤0.8 | ≤0.8 | ≤0.8 |
| Bibulous Rate% | <0.01 | <0.01 | <0.01 | Mirror Polished Ra | ≤0.05 | ≤0.1 | ≤0.05 |
| Anti Pressure Mpa | 3700Mpa | 2400Mpa | 5000Mpa | Thermal Conductivity W/m.k | 25 | 20 | 25 |
| Hardness Hra | ≥88 | ≥82 | ≥88 | Temperature Resistance ℃ | 1700 | 1600 | 1800 |
Advantages:
1. Resistant to elevated temperatures.
2. High hardness.
3. Good wear resistance.
4. Excellent chemical stability.
5. High-thermal conductivity.
Application:
Alumina ceramic is kind of structural ceramics, with insulation resistance, voltage resistance, high strength, good thermal conductivity, dielectric loss, stable electrical performance characteristics. Used in electronic ceramic substrates, ceramic electrical insulation, vacuum devices, devices porcelain, spark plugs and other products.
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