Hiki ke hana ʻia ka alumina, a i ʻole ka alumini oxide, ma kahi ʻano maʻemaʻe.ʻO nā māka maʻamau i hoʻohana ʻia no nā noi ʻenehana hou he 99.5% a 99.9% me nā mea hoʻohui i hoʻolālā ʻia e hoʻomaikaʻi i nā waiwai.Hiki ke hoʻohana ʻia nā ʻano hana hana seramika me ka mīkini a i ʻole ke ʻano ʻupena e hana ai i nā ʻano nui a me nā ʻano o nā mea.
Loaʻa i nā seramika Al2O3 nā pono penei:
1. ʻO ka paʻakikī kiʻekiʻe (ʻo 9 ka paʻakikī MOHS) a me ke kūpaʻa maikaʻi.
2. ʻO ka ikaika mechanical maikaʻi.Hiki i ka ikaika ke kulou a hiki i 300 ~ 500MPa.
3. Kūleʻa wela maikaʻi.Hiki ke hoʻomau ka mahana hana a hiki i 1000 ℃.
4. High resistivity a me ka maikai uila insulation waiwai.ʻOi loa me ka maikaʻi loa kiʻekiʻe wela insulation (Room-mahana resistivity he 1015Ω•cm) a me ka uila breakdown kū'ē (insulation ikaika mea 15kV/mm).
5. Paʻa kemika maikaʻi.ʻAʻole ia e pane me ka sulfuric acid, hydrochloric acid, nitric acid a me hydrofluoric acid.
6. Kiʻekiʻe wela corrosion kū'ē.Hiki iā ia ke pale aku i ka ʻinoʻino o nā metala hehee e like me Be, Sr, Ni, Al, V, Ta, Mn, Fe a me Co.
No laila, hoʻohana nui ʻia nā seramika alumina i nā ʻoihana ʻoihana hou.Hoʻohana nui ʻia i ka ʻoihana hana semiconductor, ʻoihana uila, ʻoihana mīkini, ʻenehana wela kiʻekiʻe, ʻoihana kemika, ʻoihana māmā, textile a me nā māla ʻē aʻe.
ʻO ka alumina kahi mea seramika i hoʻohana nui ʻia i nā noi aʻe:
✔ nā mea hoʻokalakupua uila, nā ʻāpana pale-corrosion no nā laser gas, no nā lako hana semiconductor (e like me ka chuck, hopena hopena, apo sila)
✔ insulators uila no nā paipu electron.
✔ nā ʻāpana hoʻolālā no nā mea hana kiʻekiʻe-vacuum a cryogenic, nā mea hoʻoheheʻe nuklea, nā mea hana i hoʻohana ʻia i ka wela kiʻekiʻe.
✔ nā ʻāpana pale-corrosion, piston no nā pāpaʻi, nā kiwi a me nā ʻōnaehana dosing, ka hoʻāʻo ʻana i nā kiwi koko.
✔ nā paipu thermocouple, nā mea hoʻokalakupua uila, ka mīkini wili, nā alakaʻi kaula.
Ka manawa hoʻouna: Jul-14-2023