High Temperature Refractory Machining Ceramic Parts High Temperature Working Parts
| Unit | 95Al2O3 | 99Al2O3 | ZrO2 | GP-Si3N4 | 99BN | Glass Ceramic |
|
| Color | - | white | ivory | white | black | white | white |
| Density | g/cm³ | 3.65 | 3.88 | 5.95 | 3.20 | 2.00 | 2.55 |
| Water Absorption | % | 0 | 0 | 0 | 0 | 0.0-1.0 | 0 |
| Young's Modulus | Gpa | 280 | 350 | 205 | 295 | 670 | 65 |
| Vickers Hardness | Gpa | 14 | 20 | 12 | 18-20 | - | - |
| Flexural Strength ( at R.T. ) | Mpa | 280 | 300 | 900 | 650 | 51 | 100 |
| Compressive Strength ( at R.T. ) | Mpa | 2000 | 2500 | 2200 | 2200 | 230 | 500 |
| Thermal Conductivity ( at R.T. ) | W/(m.K) | 18-25 | 30 | 2.20 | 25 | 20 | 1.70 |
| Thermal Shock Resistance | ΔT(°C) | 220 | 180-200 | 280-350 | 450-650 | >1500 | 25-100 |
| Max. Using Temp. ( at R.T. ) | °C | 1500 | 1700 | 850 | 1200 | 960 | 800 |
| Volume Resistivity ( at R.T. ) | Ω.cm | >10^15 | >10^14 | >10^12 | >10^14 | >10^13 | >10^16 |
| Dielectric Constant (1 MHz at R.T. ) | - | 9.50 | 9.80 | 26 | 8.20 | 4.08 | 6.02 |
| Dielectric Strength | KV/mm | 16 | 22 | - | 16 | 375 | 40 |
| General Characteristics of Materials: | ||||
| Characteristic | Ceramics | Metals | Polymers | Refractory |
| Density | Low to High | Low to High | Low | Low to Medium |
| Hardness | High | Medium | low | Medium |
| Toughness | low | High | Medium | low |
| Wear Resistance | High | Medium | low | Medium |
| Tensile Strength | Low to Medium |
High |
low | low |
| Compressive Strength | High | Medium to High | low to Medium | High |
| Young’s Modulus | Medium to High | Low to High | Low | Medium |
| Dimensional Stability | High | low to Medium | low | / |
| Thermal Expansion | Low to Medium | Medium to High | High | low |
| ThermalConductivity | Medium | Medium to High | Low | Medium |
| Thermal Shock | Low | Medium to High | High | low to Medium |
| Electrical Resistance | High | low | High | / |
| Chemical Resistance | High | low to Medium | Medium | / |
| Oxidation Resistance | Medium to High | low | low | / |
| Machinability | Medium | low | Medium | / |
| Product Name | High Temperature Refractory Machining Ceramic Parts High Temperature Working Parts |
| Material | Alumina Ceramic or zirconia ceramic |
| Color | white or black or customed |
| Standard | according the request of customer |
| Grade | first class |
| Brade | Rock |
| Thread | coarse, fine |
| Used | High Temperature Refractory Machining Ceramic Parts High Temperature Working Parts |
Industrial Ceramic Intriduction
Aluminium Oxide, Al2O3 is the most widely applied and cost effective technical ceramic material. It offers a combination of superior mechanical strength and electrical properties, wear resistance and corrosion resistance. The maximum working temperature is up to 1700 °C with relatively high thermal conductivity. It is also an electrically insulating materia
