Alumina ceramics o se ituaiga o alumina (Al2O3) e pei o le mea sima autu, o le taimi nei o se tasi o seramika faapitoa sili ona taatele, e mafai ona faʻaaogaina lautele i alamanuia maualuga-tekonolosi ma tipi, e pei o microelectronics, reactors faaniukilia, aerospace, mageta. fa'atupuina le malosi o le suavai, ponaivi fau ma so'oga fa'apea ma isi itu, e ala i le fiafia ma le alofa o tagata.
O mea faʻapipiʻi alumina e iai faʻamanuiaga nei:
1, o le maaa o alumina ceramics e maualuga tele, lelei le ofuina o teteʻe.
2, alumina ceramics o loʻo i ai vailaʻau faʻamaʻi ma mea auro faʻafefe.
3, alumina ceramic mea e sili ona lelei insulation, maualuga taimi gau e fai si laʻititi ae lelei uiga insulation maualuga maualuga.
4, alumina ceramic mea o loʻo i ai uiga o le vevela vevela, laʻititi laʻititi o le faʻalauteleina o le vevela, malosi faʻainisinia tele ma le lelei o le vevela.
5, e lelei le ofuina o le alumina ceramics, ae o le maaa e tutusa ma le corundum, ma o le ofuina o le malosi o le Mohs tulaga maaa 9 e faʻatusatusa i le faʻaogaina o alloys superhard.
6, alumina ceramics o loʻo i ai uiga e le mafai ona faʻafefe, ele, e le faigofie ona faʻaleagaina, o isi mea faʻalaʻau ma mea uʻamea e le mafai ona fetaui ma le faʻatinoga sili ona lelei.
| Vaega Fa'atekinisi | ||
| Poloketi | Vaega | Taua numera |
| Meafaitino | / | Al2O3 ＞99.5% |
| Lanu | / | Pa'epa'e, nifo elefane |
| Malosi | g/cm3 | 3.92 |
| Malosi Fa'asusu | MPa | 350 |
| Malosi Compressive | MPa | 2,450 |
| Young's Modulus | GPa | 360 |
| Malosi o A'afiaga | MPa m1/2 | 4-5 |
| Weibull Coefficient | m | 10 |
| Vickers Malosi | HV 0.5 | 1,800 |
| (Fa'aalili Fa'ameaola) | 1n-5k-1 | 8.2 |
| Amioga vevela | W/mK | 30 |
| Fa'amaumau Te'i vevela | △T°C | 220 |
| Maualuluga o le Fa'aogaina o le vevela | °C | 1,600 |
| 20°C Volume Resistivity | Ωcm | >1015 |
| Malosiaga Dielectric | kV/mm | 17 |
| Dielectric tumau | εr | 9.8 |
