Item | Index | Unit | Steatite ceramic | 95 Al2O3 | 99 Al2O3 | Mullite |
Physical Characteristics | Bulk density | g/cm3 | 2.7 | 3.2 | 3.89 | 2.45 |
Water absorption | % | 0 | 0 | 0 | 0 | |
Mechanical Characteristics | Flexural strength | Mpa | 145 | 320 | 340 | 100 |
Hardness Vickers | Gpa | 5.7 | 12.2 | 13.5 | 10 | |
Thermal Characteristics | Thermal conductivity | w/(m.k) | 2.5 | 16 | 24 | 4 |
Electrical Characteristics | Dielectric constant(1MHZ) | - | 6.2 | 9 | 9.4 | ? |