Ububiko bwa Alumina ni ubwoko bwa alumina (Al2O3) nkibikoresho nyamukuru by’ubutaka, kuri ubu ni kimwe mu bikoresho by’ubukorikori budasanzwe, bushobora gukoreshwa cyane mu nganda z’ikoranabuhanga rikomeye kandi zigezweho, nka microelectronics, reaction za kirimbuzi, icyogajuru, rukuruzi kubyara ingufu zamazi, amagufwa yubukorikori hamwe ningingo zihimbano nibindi bintu, kubwabantu nurukundo.
Ibikoresho bya ceramic ya Alumina bifite ibyiza bikurikira:
1, ubukana bwa ceramics ya alumina ni ndende cyane, irwanya kwambara neza.
2, ceramics ya alumina ifite imiti irwanya ruswa hamwe na zahabu yashongeshejwe.
3, ibikoresho bya alumina ceramic bifite insulasiyo nziza, gutakaza inshuro nyinshi ni bito ariko byiza biranga insimburangingo.
4, ibikoresho bya alumina ceramic bifite ibiranga kurwanya ubushyuhe, coefficente ntoya yo kwagura ubushyuhe, imbaraga za mashini nini hamwe nubushyuhe bwiza bwumuriro.
5, kwihanganira kwambara kwa alumina ceramics nibyiza, ariko ubukana nubwa corundum, kandi kwihanganira kwambara kwa Mohs kurwego rwa 9 biragereranywa nubwa superhard alloys.
6, ceramics ya alumina ifite ibiranga ibidacanwa, ingese, ntibyoroshye kwangirika, nibindi bikoresho kama nibikoresho byuma ntibishobora guhura nibikorwa byiza.
| Ibipimo bya tekiniki | ||
| Umushinga | Igice | Agaciro k'umubare |
| Ibikoresho | / | Al2O3 ＞ 99.5% |
| Ibara | / | Cyera, Coryte d'Ivoire |
| Ubucucike | g / cm3 | 3.92 |
| Imbaraga zoroshye | MPa | 350 |
| Imbaraga zo guhonyora | MPa | 2,450 |
| Modulus yumusore | GPa | 360 |
| Imbaraga | MPa m1 / 2 | 4-5 |
| Coefficient ya Weibull | m | 10 |
| Vickers Gukomera | HV 0.5 | 1.800 |
| (Coefficient yo Kwagura Ubushyuhe) | 1n-5k-1 | 8.2 |
| Amashanyarazi | W / mK | 30 |
| Ubushyuhe bwo Kumashanyarazi | ° T ° C. | 220 |
| Ntarengwa Koresha Ubushyuhe | ° C. | 1.600 |
| 20 ° C Ingano yo Kurwanya | Ωcm | > 1015 |
| Imbaraga za Dielectric | kV / mm | 17 |
| Umuyoboro uhoraho | εr | 9.8 |
