Alumina ceramics are widely used in industrial, scientific, military, and other fields due to their high hardness, high wear resistance, good chemical stability, excellent insulation properties, light weight, and high temperature resistance.
Features Of Alumina Ceramic
1. High hardness and wear resistance
2. colour:customizable
3. Can be used at high temperatures
Naterial | Unit | A95% Alumina Ceramics | A97% Alumina Ceramics | A99% Alumina Ceramics | A99.7% Alumina Ceramics |
Density | g/cm³ | 3.6 | 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 | 5 | 5 |
Weibull Modulus | M | 10 | 10 | 11 | 11 |
Vickers Hardulus | HV0.5 | 1800 | 1850 | 1900 | 1900 |
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 | 27 |
Thermal Shock Resistance | △T℃ | 250 | 250 | 270 | 270 |
*Maximum Use Temperature | ℃ | 1600 | 1600 | 1650 | 1650 |
Volume Resistivity at 20℃ | Ω | ≥1014 | ≥1014 | ≥1014 | ≥1014 |
Dielectric Strength | KV/mm | 20 | 20 | 25 | 25 |
Dielectric constant | εr | 10 | 10 | 10 | 10 |