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Refractory 99% Al2O3 Ceramic Alumina Mullite Magnesia Ceramics Tubes
Description:
Alumina ceramic is a 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.
Feature:
| Material | 85 Al2o3 | 95 Al2o3 | 99.7 Al2o3 |
| Al2o3 | 0.85 | 0.94 | 0.996 |
| Fe2o3 | ≤ 1.0 | ≤ 0.5 | ≤ 0.3 |
| Density: g / cm3 | 3.4 | 3.6 | 3.85 |
| Vickers Hardness | ≥ 8.6 | 9 | 9 |
| Water Absorption:% | ≤ 0.2 | ≤ 0.085 | ≤ 0.01 |
| Refractoriness:°C | 1200 °C | 1600 °C | 1800°C |
| Flexural Strength:Mpa | 180 | 240 | 280 |
Wear Rate( at room temperature, erosion, 100 grinding)% | ≤ 3 | ≤ 1 | ≤ 0.5 |
