Purity(%) |
above 99.8 |
Bulk Density(g/cc) |
above 3.9 |
Load0.5KgHV1=9.807NVickers
Hardness(Gpa) |
17.2~17.5 |
Bending Strength(MPa) |
345~370 |
Compressive Strength(Mpa) |
2350~2400 |
Youngs Modulus(Gpa) |
370 |
Poisson's Ratio |
0.23 |
Thermal Conductivity(W/mK) |
30 |
Thermal Expansion(x10-6/¡ÆC) |
7.8 |
Heat Shock Strength(¡âT¡ÆC) |
350 |
Specific Heat([RT]J/kg.K) |
0.78 x 10©ø |
Max Useable Temperature(¡ÆC) |
1400~1800 |
Volume Resistivity(§Ù. §¯) |
>10©ö©ù |
Dielectric Strength(V/m) |
15 x 10©ö |
Dielectric Constant(25¡ÆC 1MHZ) |
10 |
ALUMINA(Al©üO©ý)
