Hiki ke hana ʻia ka Alumina, a i ʻole Aluminium Oxide, i loko o kahi ʻano maʻemaʻe. ʻO nā māka maʻamau i hoʻohana ʻia no nā noi ʻoihana hou he 99.5% a 99.9% me nā mea hoʻohui i hoʻolālā ʻia e hoʻomaikaʻi i nā waiwai. Hiki ke hoʻopili ʻia nā ʻano hana hana seramika like ʻole me ka mīkini ʻana a i ʻole ke ʻano ʻupena e hana i nā ʻano nui a me nā ʻano o ka ʻāpana.
Loaʻa i nā keramika Al2O3 nā pono penei:
1. Paʻakikī kiʻekiʻe (ʻo ka paʻakikī MOHS he 9) a me ke kūpaʻa maikaʻi o ka ʻaʻahu.
2. Ikaika mīkini maikaʻi. Hiki i kona ikaika pelu a hiki i ka 300 ~ 500MPa.
3. Kū'ē wela maika'i loa. Hiki i kona mahana hana mau ke pi'i i 1000℃.
4. Ke kū'ē kiʻekiʻe a me nā waiwai insulation uila maikaʻi. ʻOi loa aku me ka insulation wela kiʻekiʻe maikaʻi loa (ʻO ke kū'ē wela o ka lumi he 1015Ω•cm) a me ke kū'ē haki uila (ʻo ka ikaika insulation he 15kV/mm).
5. Paʻa kemika maikaʻi. ʻAʻole ia e hana me ka waikawa sulfuric, ka waikawa hydrochloric, ka waikawa nitric a me ka waikawa hydrofluoric.
6. Ke kūpaʻa i ka pala wela kiʻekiʻe. Hiki iā ia ke pale aku i ka ʻino ʻana o nā metala i hoʻoheheʻe ʻia e like me Be, Sr, Ni, Al, V, Ta, Mn, Fe a me Co.
No laila, hoʻohana nui ʻia nā keramika alumina i nā ʻoihana ʻoihana hou. Hoʻohana nui ʻia i ka ʻoihana hana semiconductor, ʻoihana uila, ʻoihana mīkini, ke kaiapuni wela kiʻekiʻe, ʻoihana kemika, ʻoihana māmā, lole a me nā ʻoihana ʻē aʻe.
He mea seramika ka Alumina i hoʻohana nui ʻia ma nā noi aʻe:
✔ nā mea hoʻokaʻawale uila, nā ʻāpana pale i ka pala no nā lasers kinoea, no nā lako hana semiconductor (e like me ka chuck, ka hopena hopena, ke apo sila)
✔ nā mea hoʻokaʻawale uila no nā ʻōmole uila.
✔ nā ʻāpana kūkulu no nā lako vacuum kiʻekiʻe a me nā lako cryogenic, nā mea hana radiation nukelea, nā lako i hoʻohana ʻia ma ke ana wela kiʻekiʻe.
✔ nā ʻāpana kūpaʻa i ka pala, piston no nā pamu, nā kiwikā a me nā ʻōnaehana dosing, nā kiwikā koko laʻana.
✔ nā paipu thermocouple, nā mea hoʻokaʻawale uila, nā mea wili, nā alakaʻi kaula.
Ka manawa hoʻouna: Iulai-14-2023