Alumina Plate specifications
Al2O3 [%] |
≈99.8 |
MgO [%] |
≈0.1 |
Na2O [%] |
≈0.04 |
SiO2 [%] |
≈0.06 |
Fe2O3 [%] |
≤0.01 |
specific gravity (g/cm3) |
3.93 |
Vickers hardness(HV) |
2000 |
compressive strength(Mpa) |
3900 |
Bending strength(Mpa) |
390 |
Coefficient of thermal expansion(10-6K-1) |
5.5~8.4 |
dielectric strength(Ωcm) |
30 |
polishing (µm) |
Ra<0.1 |