Alumina, poʻo le Aluminum Oxide, e mafai ona gaosia i le tele o le mama.Fa'ailoga masani o lo'o fa'aogaina mo fa'aoga fa'aonaponei fa'apisinisi e 99.5% i le 99.9% fa'atasi ai ma mea fa'aopoopo ua fuafuaina e fa'aleleia ai meatotino.E mafai ona fa'aogaina le tele o auala e fa'agaoio ai sima e aofia ai machining po'o foliga upega e fausia ai le tele o lapopo'a ma foliga o vaega.
Al2O3 ceramics ei ai tulaga lelei:
1. Maaa maualuga (MOHS faigata e 9) ma lelei le faʻaogaina o le ofuina.
2. Malosi fa'ainisinia lelei.O le malosi o le punou e mafai ona oʻo atu i le 300 ~ 500MPa.
3. Fa'asao vevela lelei.O le fa'aauauina o le vevela galue e mafai ona o'o atu i le 1000 ℃.
4. Faʻasaʻo maualuga ma mea faʻapipiʻi eletise lelei.Aemaise lava i le lelei maualuga le vevela insulation (Room-temperature resistivity o 1015Ω•cm) ma voltage malepelepe tetee (malosi insulation e 15kV/mm).
5. Mautu vailaʻau lelei.E le tali atu i le sulfuric acid, hydrochloric acid, nitric acid ma le hydrofluoric acid.
6. maualuga le vevela corrosion tetee.E mafai ona sili atu ona tetee atu i le tafia o uʻamea uʻamea pei o Be, Sr, Ni, Al, V, Ta, Mn, Fe ma Co.
O le mea lea, alumina ceramics o loʻo faʻaaogaina lautele i faʻalapotopotoga faʻaonapo nei.E masani ona faʻaaogaina i semiconductor gaosiga alamanuia, alamanuia faaeletonika, alamanuia masini, siosiomaga vevela maualuga, alamanuia kemisi, alamanuia mama, ie ma isi fanua.
O le alumina o se mea sima e masani ona faʻaaogaina i mea nei:
✔ insulators eletise, corrosion-resistance vaega mo le gas lasers, mo masini semiconductor gaosiga (e pei o le chuck, end effector, faamaufaʻailoga)
✔ insulators eletise mo paipa eletise.
✔ vaega faʻavae mo masini masini ma cryogenic maualuga, masini faʻavevela faaniukilia, masini faʻaaogaina i le vevela maualuga.
✔ vaega e tete'e ai le pala, piston mo pamu, alatoto ma faiga fa'ameamea, fa'ata'ita'iga o alatoto.
✔ paipa fa'ameamea, insulators eletise, ala fa'asalalau, ta'iala filo.
Taimi meli: Iul-14-2023