项目(Item) |
单位(Unit) |
指标(Index) |
体积密度Density |
g/cm3 |
2.75-2.85 |
显气孔率Open porosity |
% |
<14 |
常温耐压强度Compressive strength |
Mpa |
>90 |
抗折强度Modules of rupture |
Mpa |
>45( 20℃) |
Mpa |
>56( 1300℃) |
|
热膨胀率Coefficient of thermal expansion |
K-1*10-6 |
4.8 |
荷重软化温度(0.3Mpa)Load melting temperature |
℃ |
>1700 |
使用温度Working temperature |
℃ |
1450 |
热传导率(at 1200℃)Thermal conductivity |
w/m.k |
14.0 |
SIC |
% |
≥88 |
Sio2 |
% |
<6 |
Al2O3 |
% |
<2 |