Naterial | Unit | 95% Alumina Ceramic | 97% Alumina Ceramic | 99% Alumina Ceramic | 99.7% Alumina Ceramic |
Density | g/cm³ | 3.65 | 3.72 | 3.85 | 3.85 |
Flexural Strength | Mpa | 290 | 300 | 350 | 350 |
Compressive Strength | Mpa | 3300 | 3400 | 3600 | 3600 |
Modulus of Elasticity | Gpa | 340 | 350 | 380 | 380 |
Impact Resistance | MPam1/2 | 3.9 | 4.0 | 5.0 | 5.0 |
Weibull Modulus | M | 10 | 10 | 11 | 11 |
Vickers Hardulus | HV0.5 | 1800 | 1850 | 1900 | 2000 |
Thermal Expansion Coefficient | 10-6K-1 | 5.0-8.3 | 5.0-8.3 | 5.4-8.3 | 5.4-8.3 |
Thermal Conductivity | W/Mk | 23 | 24 | 27 | 28 |
Thermal Shock Resistance | △T℃ | 250 | 250 | 250 | 280 |
Maximum Use Temperature | ℃ | 1600 | 1650 | 1700 | 1700 |
Volume Resistivity at 20℃ | Ω | ≥10^14 | ≥10^14 | ≥10^14 | ≥10^15 |
Dielectric Strength | KV/mm | 20 | 20 | 25 | 30 |
Dielectric Constant | εr | 10 | 10 | 10 | 10 |