Yixing City Kam Tai Refractories Co.,ltd
Yixing City Kam Tai Refractories Co.,ltd Professional Manufacturer of Refractory Kiln furniture and Technical Ceramic
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99% Alumina Ceramic TUBE
1. Alumina ceramic
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. We can make the part by hot injection pressing, dry pressing, isostatic pressing and extrusion productive technology etc.
2.Typical Characteristics:
1. High Hardness And Wear Resistance
2. Good Thermal Stability
3. Excellent Dielectric Properties
4. Low Loss Tangent
3.Typical Applications:
1. Seal Ring
2. Electrical Insulator
3. Thermocouple Tubes
4. Ballistic Armour
5. Electronic Substrate
6. Grinding Media
7. Wear Components
8. Oxygen Sensors
4. Technical Data
| Properties / Material | 95% Alumina | 99% Alumina |
| Color | White | Ivory |
| Density (g/cm^3) | 3.60 | 3.90 |
| Modulus Of Elasticity(@25°C, GPa) | 300 | 380 |
| Compressive Strength (MPa) | 2100 | 2500 |
| Vicker's Hardness(GPa) | 11.5 | 20 |
| Flexural Strength (MPa) | 300 | 350 |
| Thermal Expansion Coefficient (10^-6/°C) | 6.5 | 8.6 |
| Dielectric Strength(KV/mm) | 30 | 30 |
| Thermal Conductivity (W/mk) | 25 | 25 |
| Volume Resistivity(Ω.m) | >10^15 | >10^15 |
