ʻOkiuma Zirconium (ZrO₂), i ʻike ʻia hoʻi ʻo zirconium dioxide, he mea keramika hana kiʻekiʻe koʻikoʻi. He pauka keʻokeʻo a melemele māmā paha me nā waiwai kino a me nā kemika maikaʻi loa. Loaʻa iā Zirconia kahi kiko heheʻe ma kahi o 2700°C, paʻakikī kiʻekiʻe, ikaika mechanical kiʻekiʻe, kūpaʻa thermal maikaʻi a me ke kūpaʻa kemika, a hiki ke kū i ka ʻōpala waikawa a me ka alkali a me nā wahi wela kiʻekiʻe. Eia kekahi, loaʻa i ka zirconium oxide kahi helu refractive kiʻekiʻe a me nā waiwai optical maikaʻi loa, no laila ua hoʻohana nui ʻia ia ma ke kahua optical.
Ma nā hana maoli, maʻemaʻeʻokikene zirconiumLoaʻa nā pilikia hoʻololi pae (ʻo ka hoʻololi ʻana mai ka pae monoclinic a i ka pae tetragonal e hoʻololi i ka nui a me ka haki ʻana o nā mea), no laila pono pinepine e hoʻohui i nā mea hoʻopaʻa e like me yttrium oxide (Y₂O₃), calcium oxide (CaO) a i ʻole magnesium oxide (MgO) e hana i ka zirconium oxide paʻa (Stabilized Zirconia) e hoʻomaikaʻi i kona mau waiwai mechanical a me ke kūpaʻa ʻana i ka haʻalulu wela. Ma o nā kaʻina hana doping a me sintering kūpono, ʻaʻole hiki i nā mea zirconia ke mālama wale i nā waiwai mechanical maikaʻi loa, akā hōʻike pū i ka conductivity ionic maikaʻi, kahi e hoʻohana nui ʻia ai i nā keramika kūkulu, nā cell wahie, nā sensor oxygen, nā implants lapaʻau a me nā ʻoihana ʻē aʻe.
Ma waho aʻe o nā noi mea kūkulu kuʻuna, hoʻokani pū ka zirconia i kahi kuleana koʻikoʻi i ke kahua o ka mālama ʻana i ka ʻili ultra-precision, ʻoi aku hoʻi i ke kahua o nā mea polishing kiʻekiʻe. Me kona mau waiwai kino kū hoʻokahi, ua lilo ka zirconia i mea koʻikoʻi nui no ka polishing pololei.
Ma ke kahua o ka wili ʻana,zirconiaHoʻohana nui ʻia ʻo ia ma ke ʻano he pauka polishing kiʻekiʻe a me ka slurry polishing. Ma muli o kona paʻakikī kaulike (ʻo ka paʻakikī Mohs ma kahi o 8.5), ka ikaika mechanical kiʻekiʻe a me ka inertness kemika maikaʻi, hiki i ka zirconia ke hoʻokō i ka ʻili haʻahaʻa loa me ka hōʻoia ʻana i ka wikiwiki polishing kiʻekiʻe, a loaʻa kahi hoʻopau aniani. Ke hoʻohālikelike ʻia me nā mea polishing kuʻuna e like me ka alumini oxide a me ka cerium oxide, hiki i ka zirconia ke kaulike maikaʻi i ka wikiwiki wehe ʻana o nā mea a me ka maikaʻi o ka ʻili i ka wā o ke kaʻina polishing, a he mea nui ia i ke kahua o ka hana ultra-precision.
ʻO ka pauka wiliwili Zirconia ma ke ʻano laulā he nui ka ʻāpana i kāohi ʻia ma waena o 0.05μm a me 1μm, kahi kūpono no ka wili ʻana i ka ʻili o nā mea kikoʻī kiʻekiʻe. ʻO kāna mau wahi hoʻohana nui e pili ana i: ke aniani optical, nā aniani kāmela, ke aniani pale kelepona paʻalima, nā substrates disk paʻa, nā substrates sapphire LED, nā mea metala kiʻekiʻe (e like me nā titanium alloys, ke kila kila, nā mea hoʻonaninani metala makamae) a me nā mea hana keramika holomua (e like me nā keramika alumina, nā keramika silicon nitride, a pēlā aku). I kēia mau noi,ʻokikene zirconiumhiki i ka pauka wili ke hōʻemi pono i nā hemahema o ka ʻili a hoʻomaikaʻi i ka hana optical a me ke kūpaʻa mechanical o nā huahana.
I mea e hoʻokō ai i nā koi o nā kaʻina hana polishing like ʻole,ʻokikene zirconiumhiki ke hana ʻia i hoʻokahi pauka polishing, a i ʻole hiki ke hoʻohui ʻia me nā mea polishing ʻē aʻe (e like me ka cerium oxide, alumini oxide) e hana i kahi slurry polishing me ka hana ʻoi aku ka maikaʻi. Eia kekahi, ʻo ka slurry polishing zirconium oxide kiʻekiʻe-maʻemaʻe e hoʻohana pinepine i ka ʻenehana nano-dispersion e hoʻopuehu nui i nā ʻāpana i loko o ka wai e pale aku i ka agglomeration, e hōʻoia i ke kūpaʻa o ke kaʻina polishing a me ke kūlike o ka ʻili hope loa.
Ma keʻano holoʻokoʻa, me ka hoʻomaikaʻi mau ʻana i nā koi maikaʻi o ka ʻili ma ka ʻenehana ʻike uila, ka hana optical, ka aerospace a me nā kahua lapaʻau kiʻekiʻe.ʻokikene zirconium, ma ke ʻano he ʻano hou o ka mea hoʻopili pono kiʻekiʻe, he manaʻolana ākea loa kona no ka hoʻohana ʻana. I ka wā e hiki mai ana, me ka hoʻomohala mau ʻana o ka ʻenehana mīkini ultra-precision, e hoʻomau ka hoʻomohala ʻana o ka noi loea o ka zirconium oxide i ke kahua hoʻopili, e kōkua ana i ka hoʻokō ʻana i nā pono hana kiʻekiʻe.