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| Customization: | Available |
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| Application: | Refractory |
| Grain Size: | 3mm-100mm |
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| Technical Data | ||||
| Ceramic characteristics | ||||
| Item | 99% Ceramic | 95% Ceramic | zirconia | |
| Main content | AL2O3>=99% | AL2O3>=95% | ZrO2>=94% | |
| physical property | Density | 3.85 | 3.6 | 5.9 |
| Water absorption % | 0 | 0 | 0 | |
| Sintering temperature | 1690ºC | 1670ºC | 1650ºC | |
| Material property | Hardness HV | 1700 | 1600 | 1400 |
| Flexural strength 4pt | >3500 | >2900 | >11000 | |
| Compressive strength Kgf/cm² | 30000 | 25000 | 25000 | |
| Thermodynamic property | Maximum working temperature | 1500ºC | 1400ºC | 1600ºC |
| Coefficient of thermal expansion | 8 | 7.8 | 10 | |
| 10-6/ºC | ||||
| 0-1000ºC | ||||
| Heat shock force T(ºC) | 200 | 220 | 350 | |
| Thermal conductivity W/m.k | 31 | 22 | 3 | |
| Electrical characteristic | Volume resistivity Ω.cm | >10¹² | >10¹² | >10¹² |
| Insulation breaking strength KT/m | 18 | 16 | 15 | |
| Dielectric constant 1MHZ(E) | 9.2-10.5 | 9.0-10 | 12.5 | |


