I-Zirconium oxide (ZrO₂), eyaziwa nangokuthi i-zirconium dioxide, iyinto ebalulekile ye-ceramic esebenza kahle kakhulu. Iyimpuphu emhlophe noma ephuzi ekhanyayo enezakhiwo ezinhle kakhulu zomzimba nezamakhemikhali. I-Zirconia inezinga lokuncibilika elingaba ngu-2700°C, ubulukhuni obuphezulu, amandla aphezulu omshini, ukuzinza okuhle kokushisa kanye nokuqina kwamakhemikhali, futhi ingamelana nokugqwala kwe-asidi ne-alkali kanye nezimo zokushisa eziphakeme. Ngaphezu kwalokho, i-zirconium oxide inenkomba ephezulu yokubuka kanye nezakhiwo ezinhle kakhulu zokukhanya, ngakho-ke isetshenziswa kabanzi ensimini yokukhanya.
Ezisetshenzisweni ezisebenzayo, okumsulwai-zirconium oxideinezinkinga zokushintsha kwesigaba (ukushintsha kusuka esigabeni se-monoclinic kuya esigabeni se-tetragonal kuzobangela ushintsho lwevolumu kanye nokuqhekeka kwezinto), ngakho-ke ngokuvamile kuyadingeka ukwenza ama-stabilizer afana ne-yttrium oxide (Y₂O₃), i-calcium oxide (CaO) noma i-magnesium oxide (MgO) ukuze kwenziwe i-zirconium oxide ezinzile (i-Zirconia ezinzile) ukuze kuthuthukiswe izakhiwo zayo zemishini kanye nokumelana nokushaqeka kokushisa. Ngezinqubo ezifanele zokusebenzisa i-doping kanye ne-sintering, izinto ze-zirconia azigcini nje ngokugcina izakhiwo ezinhle zemishini, kodwa futhi zibonise ukuqhuba okuhle kwe-ionic, okwenza isetshenziswe kabanzi ezintweni ze-ceramics zesakhiwo, amaseli kaphethiloli, izinzwa ze-oxygen, izimila zezokwelapha kanye neminye imikhakha.
Ngaphezu kokusetshenziswa kwezinto zokwakha zendabuko, i-zirconia idlala indima ebaluleke kakhulu emkhakheni wokwelashwa kobuso okunembe kakhulu, ikakhulukazi emkhakheni wezinto zokupholisha ezisezingeni eliphezulu. Ngezakhiwo zayo eziyingqayizivele zomzimba, i-zirconia isibe yinto ebalulekile ebaluleke kakhulu ekupholishini okunembe.
Emkhakheni wokupholisha,i-zirconiaIsetshenziswa kakhulu njengempuphu yokupholisha ephezulu kanye ne-slurry yokupholisha. Ngenxa yobunzima bayo obuphakathi (ubulukhuni be-Mohs obungaba ngu-8.5), amandla aphezulu okusebenza kanye nokungangeni kahle kwamakhemikhali, i-zirconia ingafinyelela ubulukhuni obuphansi kakhulu bomphezulu ngenkathi iqinisekisa izinga eliphezulu lokupholisha, futhi ithole ukuqeda okusesilinganisweni sesibuko. Uma kuqhathaniswa nezinto zokupholisha zendabuko ezifana ne-aluminium oxide ne-cerium oxide, i-zirconia ingalinganisa kangcono izinga lokususwa kwezinto kanye nekhwalithi yomphezulu ngesikhathi senqubo yokupholisha, futhi iyindawo ebalulekile yokupholisha emkhakheni wokukhiqiza ngokunemba okukhulu.
Impuphu yokupholisha ye-Zirconia ngokuvamile inosayizi wezinhlayiya olawulwa phakathi kuka-0.05μm no-1μm, ofanelekela ukupholisha ubuso bezinto ezahlukahlukene ezinembe kakhulu. Izindawo zayo eziyinhloko zokusetshenziswa zifaka: ingilazi ebonakalayo, amalensi ekhamera, ingilazi yesikrini sefoni ephathekayo, ama-substrate e-hard disk, ama-substrate e-LED esafire, izinto zensimbi eziphezulu (njenge-titanium alloys, insimbi engagqwali, ubucwebe bensimbi eyigugu) kanye namadivayisi e-ceramic athuthukile (njenge-alumina ceramics, i-silicon nitride ceramics, njll.). Kulezi zinhlelo zokusebenza,i-zirconium oxideImpuphu yokupholisha inganciphisa ngempumelelo amaphutha ebusweni futhi ithuthukise ukusebenza kokukhanya kanye nokuqina kwemishini yemikhiqizo.
Ukuze kuhlangatshezwane nezidingo zezinqubo ezahlukene zokupholisha,i-zirconium oxideingenziwa ibe yimpuphu eyodwa yokupholisha, noma ingahlanganiswa nezinye izinto zokupholisha (njenge-cerium oxide, i-aluminium oxide) ukuze kwenziwe i-slurry yokupholisha esebenza kangcono. Ngaphezu kwalokho, i-slurry yokupholisha ye-zirconium oxide ehlanzekile kakhulu ivame ukusebenzisa ubuchwepheshe be-nano-dispersion ukwenza izinhlayiya zihlakazeke kakhulu oketshezini ukuze kugwenywe ukuhlangana, kuqinisekiswe ukuzinza kwenqubo yokupholisha kanye nokufana kwendawo yokugcina.
Sekukonke, ngokuthuthuka okuqhubekayo kwezidingo zekhwalithi ephezulu kwezobuchwepheshe bolwazi lwe-elekthronikhi, ukukhiqizwa kokukhanya, izindiza kanye nemikhakha yezokwelapha esezingeni eliphezulu,i-zirconium oxide, njengohlobo olusha lwezinto zokupholisha ezisebenza kahle kakhulu, lunethuba elibanzi kakhulu lokusetshenziswa. Esikhathini esizayo, ngentuthuko eqhubekayo yobuchwepheshe bokupholisha obunembile kakhulu, ukusetshenziswa kobuchwepheshe kwe-zirconium oxide ensimini yokupholisha kuzoqhubeka nokujula, kusize ukuhlangabezana nezidingo zokukhiqiza eziphezulu.