Casting Refractory Aluminum Oxide Ceramic Foam Ceramic Filter Plate For Foundry
Casting Refractory Alumina Porous Ceramic Foam Filter Plate For Foundry
Properties:
* Good electrical insulation
* High dimensional tolerances
* Excellent corrosion resistance
* Very high working temperatures
* Excellent thermal shock properties
Application:
* Furnace work tubes
* Kiln furniture, components & accessories
* Thermocouple protection tubes
* Heater Support Elements
* High Temperature Electrical Insulators
* Extreme temperature measurement components
* Ceramic Laser components
* High voltage electrical insulators
Alumina Ceramic Ring is wildely used in many fields including mechanical, electronics, electrical, semiconductor,automotive, textile, etc. For the good propertities, more and more customers choose Alumina ceramic materials for their applications. Alumina Ceramic can be made to Ceramic Nozzles, Ceramic Sprayers Cyclones, Ceramic Linings, Milling Systems, Ceramic Thread guides, etc. Customized designs are very often to be made.
| Properties | Unit | Steatite ceramic | 95% Al2O3 | 99% Al2O3 | Zirconia Ceramic |
| Density | g/cm³ | 2.8 | 3.6 | 3.8 | 5.6 |
| Flexural strength | Mpa | 145 | 300 | 300 | 354 |
| Max Working Temperature | ℃ | 1100 | 1400 | 1600 | 1400 |
| Sintering temperature | ℃ | 1350 | 1700 | 1750 | 1550 |
| Heat resistance | T(℃) | 200 | 220 | 200 | 350 |
| Hardness | Gpa | 5.7 | 7 | 10.7 | 12.3 |
| Elastic modulus | Gpa | 120 | 275 | 320 | 205 |
| Poissons ratio | - | 0.21 | 0.22 | 0.22 | 0.30 |
| Linear expansion coefficient | x 10-6/℃ | 7.9 | 7.1 | 7.8 | 9 |
| Insulation breakdown Intensity | KT/mm | 10 | 16 | 18 | 15 |
| Thermal conductivity | w/(m.k) | 2.5 | 20 | 25 | 2.5 |
| Specific Heat | *10-3J/(kg*K) | 0.75 | 0.78 | 0.78 | 0.4 |
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