| Application: | Industrial Ceramic |
|---|---|
| Ceramic Tube & Rod: | Ceramic Tube |
| Shape: | Hexagonal |
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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 |
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| Item |
Unit | Steatite ceramic | 95 Al2O3 | 96 Al2O3 | |
| Physical Characteristics | Heat resistance | 0C | 1100 | 1500 | 1550 |
| Bulk density | g/cm3 | 2.7 | 3.6 | 3.6 | |
| Water absorption | % | 0 | 0 | 0 | |
Mechanical Characteristics |
Flexural strength | Mpa | 145 | 320 | 340 |
| Hardness vickers | Gpa | 5.7 | 12.2 | 13.5 | |
| Elastic modulus | Gpa | 120 | 280 | 320 | |
| Poisson's ratio | 0.21 | 0.22 | 0.23 | ||
| Thermal Characteristics | Linear expansion coefficient | (20-5000C) 10-6/0C | 7.9 | 7.1 | 7.2 |
| Thermal conductivity | w/(m.k) | 2.5 | 16 | 24 | |
| Specific Heat | *10-3J/(kg*K) | 0.75 | 0.78 | 0.78 | |
| Electrical Characteristics | Dielectric constant (1MHZ) | - | 6.2 | 9 | 9.4 |
| Dielectric loss angle | *10-4 | 18 | 15 | 5 | |
| Dielectric strength | *106V/m | 18 | 12 | 15 | |
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