Mmepe ngwa ngwa n'ọhịa nke ozi na optoelectronics emeela ka teknụzụ kemịkalụ mekanikal polishing (CMP) na-aga n'ihu na-emelite. Na mgbakwunye na akụrụngwa na ihe ndị ọzọ, inweta elu dị elu na-adabere na imewe na mmepụta ụlọ ọrụ mmepụta ihe nke ihe ndị na-emebi emebi dị elu, yana nkwadebe nke slurry polishing kwekọrọ na ya. Nakwa ka mmezi na-aga n'ihu nke izi ezi na arụmọrụ achọrọ, ihe achọrọ maka ihe polishing dị elu na-abawanyekwa elu. A na-eji Cerium dioxide eme ihe nke ukwuu n'ịmezi ngwa eletrọnịkị na ihe ndị dị na anya ziri ezi.
Ntụ ntụ ntụ ntụ ntụ ntụ ntụ ntụ nke Cerium oxide (VK-Ce01) nwere uru dị na ikike ịkpụcha ike, arụmọrụ dị elu nke imepụta ihe, izi ezi nke imepụta ihe, ezigbo mma imepụta ihe, gburugburu ebe ọrụ dị ọcha, obere mmetọ, ogologo ndụ ọrụ, wdg, a na-ejikwa ya nke ọma na imepụta ihe na CMP, wdg. ubi nwere ọnọdụ dị oke mkpa.
Njirimara bụ isi nke cerium oxide:
Ceria, nke a makwaara dị ka cerium oxide, bụ oxide nke cerium. N'oge a, valence nke cerium bụ +4, usoro kemịkalụ bụ CeO2. Ngwaahịa dị ọcha bụ ntụ ntụ dị arọ ọcha ma ọ bụ kubik kristal, ngwaahịa adịghị ọcha na-acha odo odo ma ọ bụ ọbụna pink ruo na ntụ ntụ aja aja na-acha ọbara ọbara (n'ihi na o nwere obere lanthanum, praseodymium, wdg). Na okpomọkụ na nrụgide ụlọ, ceria bụ oxide kwụsiri ike nke cerium. Cerium nwekwara ike ịmepụta +3 valence Ce2O3, nke na-adịghị akwụsi ike ma ga-emepụta CeO2 kwụsiri ike na O2. Cerium oxide na-agbaze ntakịrị na mmiri, alkali na acid. Njupụta ya bụ 7.132 g/cm3, ebe agbaze bụ 2600℃, ebe esi mmiri bụ 3500℃.
Usoro nhazi nke cerium oxide
Ike nke ihe ndị dị na CeO2 adịghị elu. Dịka egosiri na tebụl dị n'okpuru, ike nke cerium oxide dị ala karịa nke diamond na aluminum oxide, ọ dịkwa ala karịa nke zirconium oxide na silicon oxide, nke bụ nhata ferric oxide. Ya mere, ọ gaghị ekwe omume n'ụzọ teknụzụ iwepụ ihe ndị dị na silicon oxide, dị ka iko silicate, iko quartz, wdg, na ceria nwere obere ike site na echiche igwe. Agbanyeghị, cerium oxide bụ ugbu a ntụ ntụ polishing kachasị mma maka polishing ihe ndị dabere na silicon oxide ma ọ bụ ọbụna ihe silicon nitride. A pụrụ ịhụ na polishing cerium oxide nwekwara mmetụta ndị ọzọ ewezuga mmetụta igwe. Ike nke diamond, nke bụ ihe a na-ejikarị agwakọta na polishing, na-enwekarị oghere oxygen na lattice CeO2, nke na-agbanwe njirimara anụ ahụ na kemịkalụ ya ma nwee mmetụta ụfọdụ na polishing. Ntụ ntụ polishing cerium oxide a na-ejikarị eme ihe nwere ụfọdụ ọnụọgụ oxides ụwa ndị ọzọ dị ụkọ. Praseodymium oxide (Pr6O11) nwekwara usoro cubic lattice nke dị n'etiti ihu, nke dabara adaba maka ịchacha, ebe lanthanide ndị ọzọ dị ụkọ earth oxides enweghị ikike ịchacha. Na-agbanweghị usoro kristal nke CeO2, ọ nwere ike ịmepụta ngwọta siri ike na ya n'ime oke ụfọdụ. Maka ntụ ntụ nano-cerium oxide polishing dị elu (VK-Ce01), ka ịdị ọcha nke cerium oxide (VK-Ce01) dị elu, ka ikike ịchacha na ndụ ogologo oge dịkwuo elu, karịsịa maka anya anya iko siri ike na quartz ruo ogologo oge. Mgbe a na-eme ka ịchacha cyclic, ọ dị mma iji ntụ ntụ polishing cerium oxide dị elu (VK-Ce01).
Ojiji nke ntụ ntụ polishing cerium oxide:
Ntụ ntụ ntụ polishing cerium oxide (VK-Ce01), nke a na-ejikarị eme ihe maka imepụta ihe mkpuchi iko, a na-ejikarị ya eme ihe n'ọhịa ndị a:
1. Ugogbe anya, ihe e ji ehicha anya iko;
2. Anya anya, iko anya, anya anya, wdg.;
3. Ihuenyo ekwentị mkpanaaka, elu elekere (ọnụ ụzọ elekere), wdg.;
4. Ihe nlele LCD dị iche iche nke ihuenyo LCD;
5. Nkume Rhinestones, dayamọnd na-ekpo ọkụ (kaadị, dayamọnd na jeans), bọọlụ ọkụ (chandeliers okomoko dị na nnukwu ụlọ nzukọ);
6. Ọrụ aka kristal;
7. Ịchacha jed nke ọma
Ihe ndị na-emepụta ihe mkpuchi cerium oxide dị ugbu a:
A na-etinye elu cerium oxide na aluminom iji mee ka ọ na-egbuke egbuke nke ọma na iko anya.
Ngalaba Nnyocha na Mmepe nke Teknụzụ nke UrbanMines Tech. Limited, tụrụ aro na njikọta na mgbanwe elu nke ihe ndị na-eme ka ihe dị ọcha bụ ụzọ na ụzọ isi melite arụmọrụ na izi ezi nke CMP polishing. N'ihi na enwere ike ịhazi njirimara ihe ndị dị na ya site na njikọta nke ihe dị iche iche, yana nkwụsi ike mgbasa na arụmọrụ polishing nke slurry polishing nwere ike imeziwanye site na mgbanwe elu. Nkwadebe na arụmọrụ polishing nke ntụ ntụ CeO2 ejiri TiO2 mee nwere ike imeziwanye arụmọrụ polishing site na ihe karịrị 50%, n'otu oge ahụ, ntụpọ elu na-ebelatakwa site na 80%. Mmetụta polishing synergistic nke oxides mejupụtara CeO2 ZrO2 na SiO2 2CeO2; ya mere, teknụzụ nkwadebe nke oxides mejupụtara ceria micro-nano dị oke mkpa maka mmepe nke ihe polishing ọhụrụ na mkparịta ụka nke usoro polishing. Na mgbakwunye na ọnụọgụ doping, ọnọdụ na nkesa nke dopant na ihe ndị a haziri ahazi na-emetụtakwa àgwà elu ha na arụmọrụ polishing nke ukwuu.
N'ime ha, njikọta nke ihe ndị na-eme ka ihe dị ọcha na nhazi mkpuchi na-adọrọ adọrọ karịa. Ya mere, nhọrọ nke ụzọ na ọnọdụ sịntetik dịkwa oke mkpa, karịsịa ụzọ ndị dị mfe ma dị ọnụ ala. Site na iji cerium carbonate hydrated dị ka ihe bụ isi ihe eji emepụta ihe, e ji usoro mechanochemical siri ike mmiri mepụta ihe ndị na-eme ka ihe dị ọcha nke cerium oxide nke aluminom doped. N'okpuru ọrụ nke ike igwe, enwere ike kewaa nnukwu ihe ndị dị na cerium carbonate hydrated ka ọ bụrụ obere ihe, ebe aluminum nitrate na-emeghachi omume na mmiri ammonia iji mepụta ihe ndị na-adịghị mma. A na-ejikọ ihe ndị dị na colloidal na ihe ndị dị na cerium carbonate ngwa ngwa, mgbe akpọnwụchara ma na-eme ka ihe dị ọcha na-eme ka ihe dị ọcha na-eme ka ihe dị ọcha na cerium oxide. E jiri usoro a mepụta ihe ndị dị na cerium oxide nwere ọtụtụ doping aluminum dị iche iche, a matakwara arụmọrụ ha. Mgbe etinyere ihe dị na aluminom kwesịrị ekwesị na elu nke ihe ndị dị na cerium oxide, uru na-adịghị mma nke ike elu ga-abawanye, nke mere ka oghere dị n'etiti ihe ndị na-eme ka ihe dị nro na-eme ka ihe dị nro. Enwere ike ịnweta electrostatic siri ike, nke na-akwalite mmezi nke nkwụsi ike abrasive. N'otu oge ahụ, a ga-emekwa ka mmịpụta dị n'etiti ihe ndị na-emebi emebi na oyi akwa dị nro nke nwere chajị dị mma site na Coulomb dọta sikwuo ike, nke bara uru maka mmekọrịta dị n'etiti ihe na-emebi emebi na oyi akwa dị nro n'elu iko a na-egbuke egbuke, ma na-akwalite mmụba nke ọnụego polishing.