Alumina ceramics ke mofuta oa alumina (Al2O3) e le thepa ea mantlha ea ceramic, hajoale ke e 'ngoe ea lirafshoa tse khethehileng tse atileng haholo, tse ka sebelisoang haholo indastering ea theknoloji e phahameng le ea maemo a holimo, joalo ka li-microelectronics, li-reactors tsa nyutlelie, aerospace, makenete. ho fehla matla a mokelikeli, lesapo la maiketsetso le manonyeletso a maiketsetso le likarolo tse ling, ka mohau le lerato la batho.
Lisebelisoa tsa aluminium tsa ceramic li na le melemo e latelang:
1, ho thatafala ha lirafshoa tsa alumina ho phahame haholo, ho hanyetsa ho apara hantle.
2, lirafshoa tsa alumina li na le khanyetso ea ho bola ha lik'hemik'hale le thepa ea khauta e qhibilihisitsoeng.
3, lisebelisoa tsa alumina ceramic li na le insulation e ntle haholo, tahlehelo e phahameng ea maqhubu e batla e le nyane empa e na le litšobotsi tse ntle tsa ho kenya maqhubu.
4, lisebelisoa tsa alumina ceramic li na le litšobotsi tsa ho hanyetsa mocheso, coefficient e nyane ea katoloso ea mocheso, matla a maholo a mochini le conductivity e ntle ea mocheso.
5, khanyetso ea ho roala ha li-ceramics tsa alumina e ntle, empa boima bo tšoana le ba corundum, 'me ho hanyetsa ho roala ha Mohs hardness level 9 ho bapisoa le li-alloys tse matla haholo.
6, li-ceramics tsa alumina li na le litšobotsi tsa ho se chese, mafome, ha ho bonolo ho senya, e leng lisebelisoa tse ling tsa manyolo le lisebelisoa tsa tšepe li ke ke tsa tšoana le ts'ebetso e babatsehang.
| Tekheniki Parameters | ||
| Morero | Yuniti | Boleng ba palo |
| Lintho tse bonahalang | / | Al2O3 ~99.5% |
| Mmala | / | Lekhooa,Lenaka la tlou |
| Botenya | g/cm3 | 3.92 |
| Flexural Matla | MPa | 350 |
| Matla a Khatellang | MPa | 2,450 |
| Modulus ea Bacha | GPA | 360 |
| Matla a Tšusumetso | MPa m1/2 | 4-5 |
| Weibull Coefficient | m | 10 |
| Vickers Hardness | HV 0.5 | 1,800 |
| (Thermal Expansion Coefficient) | 1n-5k-1 | 8.2 |
| Thermal Conductivity | W/mK | 30 |
| Thermal Shock Stability | △T°C | 220 |
| Boholo ba Tšebeliso ea Mocheso | °C | 1,600 |
| 20°C Ho hanyetsa Molumo | Ωcm | >1015 |
| Matla a Dielectric | kV/mm | 17 |
| Dielectric Constant | εr | 9.8 |
