I-Zirconium oxide (ZrO₂), ekwabizwa ngokuba yi-zirconium dioxide, yinto ebalulekileyo ye-ceramic esebenza kakhulu. Ngumgubo omhlophe okanye okhanyayo otyheli oneempawu ezibalaseleyo zomzimba kunye neekhemikhali. I-Zirconia ine-melting point malunga ne-2700 ° C, ubunzima obuphezulu, amandla aphezulu omatshini, ukuzinza okuhle kwe-thermal kunye nokuzinza kweekhemikhali, kwaye inokumelana ne-asidi kunye ne-alkali corrosion kunye neendawo zokushisa eziphezulu. Ukongezelela, i-zirconium oxide inesalathisi esiphezulu se-refractive kunye neempawu ezibalaseleyo ze-optical, ngoko ke isetyenziselwa ngokubanzi kwintsimi ye-optical.
Kwiinkqubo ezisebenzayo, ezicocekileyoi-zirconium oxideineengxaki zokutshintsha kwesigaba (utshintsho ukusuka kwisigaba se-monoclinic ukuya kwisigaba se-tetragonal kuya kubangela ukuguqulwa kwevolumu kunye nokuqhekeka kwezinto), ngoko ngokuqhelekileyo kuyimfuneko ukwenza i-dope stabilizers ezifana ne-yttrium oxide (Y₂O₃), i-calcium oxide (CaO) okanye i-magnesium oxide (i-MgO) ukwenza i-zirconium oxide ezinzileyo (i-zirconium oxide ezinzileyo (i-stabilized shock resistance properties). Ngokusebenzisa i-doping enengqiqo kunye neenkqubo ze-sintering, izinto ze-zirconia azikwazi ukugcina iimpawu ezigqwesileyo zoomatshini, kodwa zibonise i-ionic conductivity enhle, eyenza isetyenziswe ngokubanzi kwi-ceramics yesakhiwo, iiseli zepetroli, izinzwa ze-oksijini, ukufakelwa kwezonyango kunye nezinye iinkalo.
Ukongeza kwizicelo zemveli zezakhiwo, i-zirconia nayo idlala indima ebaluleke kakhulu kwintsimi yonyango lwe-ultra-precision surface, ngokukodwa kwintsimi yezinto eziphezulu zokupholisa. Ngeempawu zayo ezikhethekileyo zomzimba, i-zirconia iye yaba yinto ebaluleke kakhulu yokucoliseka okuchanekileyo.
Kwintsimi yokupholisha,zirconiaisetyenziswa ikakhulu njengomgubo wesiphelo esiphezulu sokupholisha kunye nodaka lokupholisha. Ngenxa yokuqina kwayo okuphakathi (ubunzima be-Mohs malunga ne-8.5), amandla aphezulu omatshini kunye nokungangeni kakuhle kweekhemikhali, i-zirconia inokufikelela kubunzima obuphantsi kakhulu bomhlaba ngelixa iqinisekisa izinga eliphezulu lokupholisha, kwaye ifumane ukugqitywa kwenqanaba lesipili. Xa kuthelekiswa nezinto zokupolisha zemveli ezifana ne-aluminium oxide kunye ne-cerium oxide, i-zirconia inokulinganisa ngcono izinga lokususa izinto kunye nomgangatho womphezulu ngexesha lenkqubo yokupolisha, kwaye iyindawo ebalulekileyo yokupolisha kwintsimi yokwenziwa kwe-ultra-precision.
I-Zirconia ipolishi yokupholisha ngokubanzi inobungakanani besuntswana elilawulwa phakathi kwe-0.05μm kunye ne-1μm, elungele ukupolisha komphezulu wezinto ezahlukeneyo ezichanekileyo. Iindawo zayo eziphambili zesicelo zibandakanya: iglasi yeglasi, iilensi zekhamera, iglasi yesikrini sefowuni ephathwayo, i-hard disk substrates, i-LED yesafire substrates, izixhobo zentsimbi eziphezulu (ezifana ne-titanium alloys, insimbi engenasici, ubucwebe bentsimbi exabisekileyo) kunye nezixhobo eziphambili ze-ceramic (ezifana ne-alumina ceramics, i-silicon nitride ceramics, njl.). Kwezi zicelo,i-zirconium oxideipolish powder inokunciphisa ngempumelelo iziphene zomhlaba kunye nokuphucula ukusebenza kwe-optical kunye nokuzinza komatshini weemveliso.
Ukuze kuhlangatyezwane neemfuno zeenkqubo ezahlukeneyo zokupholisha,i-zirconium oxideinokwenziwa ibe ngumgubo omnye wokupholisha, okanye inokudityaniswa nezinye izinto zokupholisa (ezifana ne-cerium oxide, i-aluminium oxide) ukwenza i-slurry yokupholisa kunye nokusebenza okungcono. Ukongezelela, i-high-purity zirconium oxide polishing slurry ngokuqhelekileyo ithatha iteknoloji ye-nano-dispersion ukwenza amasuntswana ahlakazeke kakhulu kulwelo ukuphepha ukudibanisa, ukuqinisekisa ukuzinza kwenkqubo yokupolisha kunye nokufana kwendawo yokugqibela.
Ngokubanzi, ngokuphuculwa okuqhubekayo kweemfuno zomgangatho womphezulu kwitekhnoloji yolwazi lwe-elektroniki, ukuveliswa kwe-optical, i-aerospace kunye nemimandla yezonyango ephezulu,i-zirconium oxide, njengohlobo olutsha lwezinto eziphezulu zokupholisa, lunombono obanzi kakhulu wesicelo. Kwixesha elizayo, ngophuhliso oluqhubekayo lwetekhnoloji ye-ultra-precision machining, ukusetyenziswa kobugcisa be-zirconium oxide kwintsimi yokupholisa kuya kuqhubeka nokujula, kunceda ukuhlangabezana neemfuno eziphezulu zokuvelisa.