China Mechanical Strength Polished Mirror Sheet Al2O3 Alumina Ceramic Substrate with Ra0.4, Find details about China Ceramic, Alumina Ceramic from Mechanical Strength Polished Mirror Sheet Al2O3 Alumina Ceramic Substrate with Ra0.4
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 |