Cearcallan ceirmeach Alumina
Paramadairean Teicnigeach
Crìochan Obrachaidh | Aonadan | Alumina Ceramics | Alumina Ceramics |
Susbaint Alumina | wt % | ≥ 99 | ≥ 95 |
Meud Dùmhlachd | g / cm3 | 3.85 | 3.7 |
cruas (HRA) | HRA ≥ | 88 | 86 |
Neart teannachaidh | MPa ≥ | 400 | 300 |
Teòthachd as àirde | ℃ | 1500 | 1500 |
Deuchainn teann adhair | Gabh seachad | Gabh seachad | |
Deuchainn clisgeadh teirmeach | Gabh seachad | Gabh seachad | |
Coefficient de leudachadh teas | × 10-6 / ℃ | 8.2 | 7.5 |
Constant dielectric | εr20 ℃, 1MHz | 9.2 | 9 |
Call dielectric | tanδ × 10-4, 1MHz | 2 | 3 |
Seasmhachd Tomhais | Ω · cm 20 ℃ | 1014 | 1013 |
Neart puncture | KV/mm, DC≥ | 20 | 20 |
Seasmhachd searbhagach | mg/cm2 ≤ | 0.7 | 7 |
Alkali-resistant | mg/cm2 ≤ | 0.1 | 0.2 |
Frith-aghaidh sgrìobadh | g/cm2 ≤ | 0.1 | 0.2 |
Neart teannachaidh | M Pa ≥ | 2800 | 2500 |
Neart sùbailte | M Pa ≥ | 350 | 200 |
Modal elastic | G Pa | 350 | 300 |
Co-mheas Poisson | 0.22 | 0.2 | |
Giùlan teirmeach | W / m · K (20 ℃) | 25 | 20 |