China High Purity Al2O3 Ceramic Corundum Alumina Crucible Support for Metal Melting in Laboratory, Find details about China Ceramic, Alumina Ceramic from High Purity Al2O3 Ceramic Corundum Alumina Crucible Support for Metal Melting in Laboratory
Attribute | Zirconia | Alumina | ZTA |
Density | 5.9-6.05g/cm3 | 3.6-3.8g/cm3 | 4.8g/cm3 |
Hardness(HRC) | 88-90 | 80-86 | 86 |
Fracture Toughness | 10MPa.m½ | 4MPa.m½ | - |
Compressive Strength | 2000MPa | 1500MPa | 1700MPa |
CTE | 10.5ppm/ºC | 7.15-7.67ppm/ºC | 9.1ppm/ºC |
Maximum Operating Temperature | 1350ºC | 1700ºC | 1350ºC |
Thermal Conductivity(24ºC) | 2W/m.k | 18-28W/m.k | - |
Flexural Strength (24ºC) | 950MPa | 300MPa | 600MPa |
Water Absorption(%) | 0 | 0 | 0 |