Ukuthuthukiswa okusheshayo emikhakheni yolwazi kanye ne-optoelectronics kukhuthaze ukubuyekezwa okuqhubekayo kobuchwepheshe be-chemical mechanical polishing (CMP). Ngaphezu kwemishini nezinto zokwakha, ukutholwa kwezindawo eziphakeme kakhulu zokunemba kuncike kakhulu ekwakhiweni nasekukhiqizeni izimboni zezinhlayiya ze-abrasive ezisebenza kahle kakhulu, kanye nokulungiswa kwe-slurry yokupholisha ehambisanayo. Futhi ngokuthuthukiswa okuqhubekayo kokunemba kokucubungula indawo kanye nezidingo ezisebenza kahle, izidingo zezinto zokupholisha ezisebenza kahle kakhulu nazo ziya ngokuya zikhuphuka. I-Cerium dioxide isetshenziswe kabanzi ekusetshenzisweni kokunemba okungaphezulu kwamadivayisi we-microelectronic kanye nezingxenye ze-optical ngokunemba.
I-Cerium oxide polishing powder (VK-Ce01) i-polish powder inezinzuzo zekhono eliqinile lokusika, ukusebenza kahle kokupholisha, ukunemba okuphezulu kokupholisha, izinga elihle lokupholisha, indawo yokusebenza ehlanzekile, ukungcola okuphansi, impilo ende yesevisi, njll., futhi isetshenziswa kabanzi i-optical precision polishing kanye ne-CMP, njll. inkambu ithatha isikhundla esibaluleke kakhulu.
Izici eziyisisekelo ze-cerium oxide:
I-Ceria, eyaziwa nangokuthi i-cerium oxide, iyi-oxide ye-cerium. Ngalesi sikhathi, i-valence ye-cerium ingu-+4, futhi ifomula yamakhemikhali yi-CeO2. Umkhiqizo omsulwa uyimpushana esindayo emhlophe noma i-cubic crystal, futhi umkhiqizo ongcolile uphuzi ngokukhanyayo noma ubomvana ukuya kumpushana obomvu ngokubomvu (ngoba uqukethe amanani e-lanthanum, i-praseodymium, njll.). Ezingeni lokushisa lekamelo nokucindezela, i-ceria iyi-oxide ezinzile ye-cerium. I-Cerium ingase futhi yakhe i-+3 valence Ce2O3, engazinzile futhi izokwakha i-CeO2 ezinzile ne-O2. I-Cerium oxide incibilika kancane emanzini, i-alkali ne-asidi. Ukuminyana kungu-7.132 g/cm3, indawo encibilikayo ingu-2600℃, kanti indawo yokubilisa ingu-3500℃.
Indlela yokupholisha ye-cerium oxide
Ukuqina kwezinhlayiya ze-CeO2 abukho phezulu. Njengoba kuboniswe kuleli tafula elingezansi, ubulukhuni be-cerium oxide buphansi kakhulu kunobukadayimane ne-aluminium oxide, futhi buphansi kunalokho be-zirconium oxide ne-silicon oxide, okulingana ne-ferric oxide. Ngakho-ke akunakwenzeka ngokobuchwepheshe ukucekela phansi izinto ezisekelwe ku-silicon oxide, njengengilazi ye-silicate, ingilazi ye-quartz, njll., nge-ceria enobulukhuni obuphansi ukusuka endaweni yokubuka kuphela. Kodwa-ke, i-cerium oxide njengamanje iyimpushana yokupholisha ethandwayo yokupholisha izinto ezisekelwe ku-silicon oxide noma ngisho nezinto ze-silicon nitride. Kungabonakala ukuthi ukupholisha kwe-cerium oxide nakho kuneminye imiphumela ngaphandle kwemiphumela yemishini. Ukuqina kwedayimane, okuwumsebenzi ovame ukusetshenziswa wokugaya nokupholishwa, ngokuvamile kunezikhala ze-oxygen ku-lattice ye-CeO2, eshintsha izici zayo ezingokomzimba namakhemikhali futhi ibe nomthelela othile ezintweni zokupholisha. Izimpushana zokupholisha ze-cerium oxide ezivame ukusetshenziswa ziqukethe inani elithile lamanye ama-oxide omhlaba ayivelakancane. I-Praseodymium oxide (Pr6O11) iphinde ibe nesakhiwo se-cubic lattice esigxile ebusweni, esilungele ukupholishwa, kuyilapho amanye ama-lanthanide omhlaba ayivelakancane awanawo amandla okupholisha. Ngaphandle kokushintsha ukwakheka kwekristalu ye-CeO2, ingakha isixazululo esiqinile nayo ngaphakathi kwebanga elithile. Impushana yokupholisha i-nano-cerium oxide ehlanzekile kakhulu (i-VK-Ce01), izinga eliphezulu lokuhlanzeka kwe-cerium oxide (VK-Ce01), amandla okupholisha nempilo ende yesevisi, ikakhulukazi ingilazi eqinile namalensi optical equartz isikhathi eside. Uma upholisha nge-cyclic, kuhle ukusebenzisa i-powder yokucwenga i-cerium oxide ephezulu (VK-Ce01).
Ukusetshenziswa kwe-cerium oxide polishing powder:
I-Cerium oxide polishing powder (VK-Ce01), ikakhulukazi esetshenziselwa ukupholisha imikhiqizo yengilazi, isetshenziswa kakhulu kule mikhakha elandelayo:
1. Izibuko, ukupholisha ilensi yengilazi;
2. Ilensi yokubona, ingilazi yokubona, ilensi, njll.;
3. Ingilazi yesikrini sefoni ephathekayo, indawo yokubuka (umnyango wokubuka), njll.;
4. I-LCD iqapha zonke izinhlobo zesikrini se-LCD;
5. Ama-Rhinestones, amadayimane ashisayo (amakhadi, amadayimane ku-jeans), amabhola okukhanyisa (ama-chandeliers okunethezeka ehholo elikhulu);
6. Imisebenzi yezandla yekristalu;
7. Ukupholisha ingxenye ye-jade
Imikhiqizo yamanje yokupholisha i-cerium oxide:
Ingaphezulu le-cerium oxide lifakwe i-aluminium ukuze lithuthukise ngokuphawulekayo ukupholisha kwayo kwengilazi yokubona.
Umnyango Wokucwaninga Nokuthuthukiswa Kwezobuchwepheshe we-UrbanMines Tech. Ilinganiselwe, ihlongoze ukuthi ukuhlanganiswa nokuguqulwa kwendawo yezinhlayiya zokupholisha kuyindlela eyinhloko nezindlela zokuthuthukisa ukusebenza kahle nokunemba kokupholisha kwe-CMP. Ngoba izakhiwo zezinhlayiya zingacutshungulwa ngokuhlanganisa izakhi zezingxenye eziningi, futhi ukuzinza kokuhlakazeka nokusebenza kahle kokupholisha kwe-polishing slurry kungathuthukiswa ngokuguqulwa kwendawo. Ukulungiswa nokusebenza kokupholisha kwe-CeO2 powder efakwe nge-TiO2 kungathuthukisa ukusebenza kahle kokupholisha ngaphezu kuka-50%, futhi ngesikhathi esifanayo, ukukhubazeka okungaphezulu kubuye kuncishiswe ngo-80%. Umthelela wokupholisha we-synergistic we-CeO2 ZrO2 kanye ne-SiO2 2CeO2 ama-oxide ayinhlanganisela; ngakho-ke, ubuchwepheshe bokulungiselela i-doped ceria micro-nano composite oxides bubaluleke kakhulu ekuthuthukisweni kwezinto ezintsha zokupholisha kanye nengxoxo yomshini wokupholisha. Ngaphezu kwenani le-doping, isimo nokusatshalaliswa kwe-dopant ezinhlayiyeni ezihlanganisiwe nakho kuthinta kakhulu izakhiwo zabo ezingaphezulu nokusebenza kokupholisha.
Phakathi kwazo, ukuhlanganiswa kwezinhlayiya zokupholisha ngesakhiwo sokugqoka kukhanga kakhulu. Ngakho-ke, ukukhethwa kwezindlela zokwenziwa kanye nezimo nakho kubaluleke kakhulu, ikakhulukazi lezo zindlela ezilula futhi ezingabizi kakhulu. Kusetshenziswa i-hydrated cerium carbonate njengento eluhlaza eyinhloko, izinhlayiya zokupholisha i-aluminium-doped cerium oxide zahlanganiswa ngendlela emanzi ye-solid-phase mechanochemical method. Ngaphansi kwesenzo samandla emishini, izinhlayiya ezinkulu ze-hydrated cerium carbonate zingaqhekeka zibe yizinhlayiya ezinhle, kuyilapho i-aluminiyamu nitrate isabela namanzi ammonia ukuze yenze izinhlayiya ze-amorphous colloidal. Izinhlayiya ze-colloidal zixhunywe kalula ezinhlayiyeni ze-cerium carbonate, futhi ngemva kokumisa nokubala, i-aluminium doping ingafinyelelwa ebusweni be-cerium oxide. Le ndlela yasetshenziswa ukuze kuhlanganiswe izinhlayiya ze-cerium oxide ngamanani ahlukene e-aluminium doping, futhi ukusebenza kwazo kokupholisha kwaphawulwa. Ngemva kokuba inani elifanele le-aluminium lengezwe ebusweni bezinhlayiya ze-cerium oxide, inani elibi lamandla angaphezulu lizokhula, okube sekwenza igebe phakathi kwezinhlayiya ezihuquzelayo. Kukhona i-electrostatic repulsion enamandla, ekhuthaza ukuthuthukiswa kokuzinza kokumiswa kwe-abrasive. Ngesikhathi esifanayo, ukukhangisa okuhlanganyelwe phakathi kwezinhlayiya eziqhumayo kanye nongqimba oluthambile olushajwe kahle ngokusebenzisa ukukhanga kwe-Coulomb nakho kuzoqiniswa, okuzuzisa ukuxhumana phakathi kwe-abrasive kanye nongqimba oluthambile ebusweni bengilazi epholishiwe, futhi kukhuthaza. ukuthuthukiswa kwezinga lokupholisha.