High Temperature Resistance Alumina Ceramic Disc Smooth Surface
High Temperature Resistance Alumina Ceramic dics for heat insulation
Description:
Alumina ceramic disc is used in high temperature sintering furnace,Play the role of mat burning and Can have the effect of insulation.
Principal characteristic of High Temperature Resistance Alumina Ceramic dics for heat insulation:
1. Thermal characteristics: heat resistance and thermal conductivity
2. Mechanical properties: high strength and hardness
3. Other features: high electrical insulation, corrosion resistance, high biocompatibility.
Application of High Temperature Resistance Alumina Ceramic dics for heat insulation:
Ultrafine grinding equipment, fine chemical industry, electronic paste, semiconductor, new energy, nano new materials, medical instruments, precision casting, structural ceramics, refractory materials, electronic communications, sensitive ceramics, petrochemical industry, aerospace, machinery manufacturing, optical fiber connector, battery materials and other high-precision end fields.
Technical Parameters:
| Material | >92% Al2O3 | >95% Al2O3 | >99% Al2O3 | >99.7% Al2O3 | >99.9% Al2O3 |
| Color | white | white | white | white,off-white | off-white |
| Density | 3.45 | 3.5 | 3.75 | 3.9 | 3.92 |
| flexure strength | 340 | 300 | 330 | 390 | 390 |
| compressive strength | 3600 | 3400 | 2800 | 3900 | 3900 |
| elasticity modulus | 350 | 350 | 370 | 390 | 390 |
| impact resistance | 4.2 | 4 | 4.4 | 5.2 | 5.5 |
| Weibull Modulus | 11 | 10 | 10 | 12 | 12 |
| Vickers hardness | 1700 | 1800 | 1800 | 2000 | 2000 |
| coefficient of thermal expansion | 5.0-8.3 | 5.0-8.3 | 5.1-8.3 | 5.5-8.4 | 5.5-8.5 |
| Thermal conductivit | 18 | 24 | 25 | 28 | 30 |
| Thermal stability | 220 | 250 | 250 | 280 | 280 |
| maximum service temperature | 1500 | 1600 | 1600 | 1700 | 1700 |
| 20℃volume resistance | >10ˆ14 | >10ˆ14 | >10ˆ14 | >10ˆ15 | >10ˆ15 |
| dielectric strength | 20 | 20 | 20 | 30 | 30 |
| dielectric constant | 10 | 10 | 10 | 10 | 10 |
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