ʻO ka pauka Alpha-alumina (α-Al2O3), i kapa ʻia ʻo ka pauka alumini oxide, he mea maʻalahi me ka nui o nā noi i nā ʻoihana e like me nā ceramics, refractories, abrasives, catalysts, a me nā mea hou aku.Eia kekahi mau kikoʻī maʻamau no ka pauka alpha-Al2O3
Huina Kemika:
Aluminum oxide (Al2O3): ʻO 99% a ʻoi aku paha.
Ka nui o ka ʻāpana:
Hiki ke hoʻokaʻawale ʻia ka nui o nā ʻāpana ma muli o nā koi noi kikoʻī.
Hiki ke ʻokoʻa mai ka sub-micron a i kekahi mau microns.
Hāʻawi ka pauda ʻoi aku ka nui o nā ʻāpana ʻoi aku ka nui o ka ʻili a me ka hoʻoulu ʻana.
kala:
ʻO ka maʻamau keʻokeʻo, me kahi kiʻekiʻe o ka maʻemaʻe.
Hoʻokumu Crystal:
Loaʻa iā Alpha-alumina (α-Al2O3) kahi ʻano aniani hexagonal.
ʻĀpana ʻili kikoʻī:
ʻO ka maʻamau i ka laulā o 2 a 20 m2/g.
Hāʻawi nā pauka ʻāpana kiʻekiʻe i ka hoʻoulu ʻana a me ka uhi o ka ʻili.
Maʻemaʻe:
Loaʻa nā pauka alpha-Al2O3 maʻemaʻe kiʻekiʻe me ka liʻiliʻi o nā haumia.
ʻO ka pae maʻemaʻe he 99% a ʻoi paha.
ʻAiʻa nui:
Hiki ke ʻokoʻa ka nui o ka pauka alpha-Al2O3 ma muli o ke kaʻina hana kikoʻī a i ʻole ka papa.
Mai ka 0.5 a hiki i ka 1.2 g/cm3.
Paʻa wela:
Hōʻike ka pauka Alpha-Al2O3 i ke kūpaʻa wela maikaʻi a me ka helu heheʻe kiʻekiʻe.
Kahi hehee: Ma kahi o 2,072°C (3,762°F).
ʻoʻoleʻa:
ʻIke ʻia ka pauka Alpha-Al2O3 no kona paʻakikī kiʻekiʻe.
Mohs paakiki: Ma kahi o 9.
Kemikini inertness:
ʻO ka pauka Alpha-Al2O3 he kemika inert a ʻaʻole pane me ka hapa nui o nā kemika.
He kūpaʻa ia i nā waikawa a me nā alkali.
He mea nui e hoʻomaopopo i nā kikoʻī kikoʻī o ka pauka alpha-Al2O3 hiki ke ʻokoʻa i waena o nā mea hana a me nā māka kikoʻī.No laila, ʻoi aku ka maikaʻi e nānā i ka ʻikepili huahana a i ʻole e nīnau i ka mea hoʻolako no ka ʻike kikoʻī a me nā koi kikoʻī no kāu noi i manaʻo ʻia.
1.Luminescent mea: kakaikahi honua trichromatic phosphors i hoʻohana 'ia e like me ka nui maka mea long afterglow phosphor, PDP phosphor, LED phosphor;
2. Transparent ceramics: hoʻohana 'ia e like me ka fluorescent paipu no kiʻekiʻe puʻe sodium kukui, electricly programmable heluhelu-wale hoʻomanaʻo puka aniani;
3.Single Crystal: no ka hana ʻana i ka ruby, sapphire, yttrium alumini garnet;
4.High ikaika alumina ceramic kiʻekiʻe: e like me ka substrate i hoʻohana ʻia i ka hana ʻana i nā kaapuni i hoʻohui ʻia, nā mea ʻoki ʻoki a me ka crucible maʻemaʻe kiʻekiʻe;
5.Abrasive: hana i ka abrasive o ke aniani, metala, semiconductor a me ka plastic;
6.Diaphragm: Ke noi no ka hana ʻana i ka uhi hoʻokaʻawale pākahi lithium;
7.Other: ma keʻano he mea hoʻoulu hana, adsorbents, catalysts a me nā kākoʻo catalyst, ka uhiʻana o ka vacuum, nā mea aniani kūikawā, nā mea hoʻohui, ka resin filler, bio-ceramics etc.
Inā he mau nīnau kāu. E ʻoluʻolu e hoʻokaʻaʻike mai iā mākou.