ʻO ka wikiwiki o ka hoʻomohala ʻana i nā kahua o ka ʻike a me ka optoelectronics ua hoʻolaha i ka hoʻonui mau ʻana o ka ʻenehana polishing mechanical chemical (CMP). Ma waho aʻe o nā lako a me nā mea hana, ʻo ka loaʻa ʻana o nā ʻili ultra-kiʻekiʻe-precision e hilinaʻi nui ʻia ana i ka hoʻolālā a me ka hana ʻoihana o nā ʻāpana abrasive kiʻekiʻe-ka pono, a me ka hoʻomākaukau ʻana o ka slurry polishing e pili ana. A me ka hoʻomaikaʻi mau ʻana o ka pololei o ka hana ʻana i ka ʻili a me nā koi pono, ke piʻi nei hoʻi nā koi no nā mea polishing kiʻekiʻe-ka pono. Ua hoʻohana nui ʻia ʻo Cerium dioxide i ka mīkini kikoʻī o ka ʻili o nā mea microelectronic a me nā ʻāpana optical kikoʻī.
ʻO ka pauka wiliwili Cerium oxide (VK-Ce01) he mau pono o ka hiki ke ʻoki ikaika, ka pono wiliwili kiʻekiʻe, ka pololei wiliwili kiʻekiʻe, ka maikaʻi wiliwili maikaʻi, kahi hana maʻemaʻe, ka haumia haʻahaʻa, ke ola lawelawe lōʻihi, a pēlā aku, a hoʻohana nui ʻia i ka wiliwili pololei optical a me CMP, a pēlā aku. Noho ke kahua i kahi kūlana koʻikoʻi loa.
Nā waiwai kumu o ka cerium oxide:
ʻO Ceria, i ʻike ʻia hoʻi ʻo cerium oxide, he oxide o cerium. I kēia manawa, ʻo ka valence o cerium he +4, a ʻo ke ʻano kemika ʻo CeO2. ʻO ka huahana maʻemaʻe he pauka kaumaha keʻokeʻo a i ʻole ke aniani cubic, a ʻo ka huahana haumia he melemele māmā a i ʻole poni a i ʻole ka pauka ʻulaʻula-ʻulaʻula (no ka mea, aia nā nui liʻiliʻi o ka lanthanum, praseodymium, a pēlā aku). Ma ka mahana o ka lumi a me ke kaomi, ʻo ceria kahi oxide paʻa o cerium. Hiki iā Cerium ke hana i ka +3 valence Ce2O3, kahi mea paʻa ʻole a e hana i ka CeO2 paʻa me O2. Hoʻoheheʻe iki ʻia ka Cerium oxide i ka wai, alkali a me ka waikawa. ʻO ka density he 7.132 g/cm3, ʻo ke kiko heheʻe he 2600℃, a ʻo ke kiko paila he 3500℃.
ʻAno hoʻopili ʻana o ka cerium oxide
ʻAʻole kiʻekiʻe ka paʻakikī o nā ʻāpana CeO2. E like me ka mea i hōʻike ʻia ma ka papa ma lalo nei, ʻoi aku ka haʻahaʻa o ka paʻakikī o ka cerium oxide ma mua o ka daimana a me ka alumini oxide, a ʻoi aku hoʻi ka haʻahaʻa ma mua o ka zirconium oxide a me ka silicon oxide, kahi like me ka ferric oxide. No laila, ʻaʻole hiki ke hoʻopau i nā mea i hoʻokumu ʻia i ka silicon oxide, e like me ke aniani silicate, ke aniani quartz, a pēlā aku, me ka ceria me ka paʻakikī haʻahaʻa mai kahi manaʻo mechanical wale nō. Eia nō naʻe, ʻo ka cerium oxide ka pauka polishing makemake ʻia i kēia manawa no ka polishing ʻana i nā mea i hoʻokumu ʻia i ka silicon oxide a i ʻole nā mea silicon nitride. Hiki ke ʻike ʻia he mau hopena ʻē aʻe ka polishing cerium oxide ma waho aʻe o nā hopena mechanical. ʻO ka paʻakikī o ka daimana, kahi mea wili a me ka polishing i hoʻohana pinepine ʻia, he mau hakahaka oxygen ma ka lattice CeO2, kahi e hoʻololi ai i kona mau waiwai kino a me ke kemika a he hopena koʻikoʻi i nā waiwai polishing. Loaʻa i nā pauka polishing cerium oxide i hoʻohana pinepine ʻia kahi nui o nā oxides honua kakaikahi ʻē aʻe. Loaʻa i ka Praseodymium oxide (Pr6O11) kahi ʻano lattice cubic i waenakonu o ke alo, kahi kūpono no ka wili ʻana, ʻoiai ʻaʻohe hiki ke wili ʻia nā oxides honua kakaikahi lanthanide ʻē aʻe. Me ka hoʻololi ʻole ʻana i ke ʻano kristal o CeO2, hiki iā ia ke hana i kahi hopena paʻa me ia i loko o kahi pae. No ka pauka wili nano-cerium oxide maʻemaʻe kiʻekiʻe (VK-Ce01), ʻoi aku ka kiʻekiʻe o ka maʻemaʻe o ka cerium oxide (VK-Ce01), ʻoi aku ka nui o ka hiki ke wili a me ke ola lawelawe lōʻihi, ʻoi aku hoʻi no ke aniani paʻakikī a me nā aniani optical quartz no ka manawa lōʻihi. I ka wā e cyclic polishing ai, he mea kūpono ke hoʻohana i ka pauka wili cerium oxide maʻemaʻe kiʻekiʻe (VK-Ce01).
Ka hoʻohana ʻana o ka pauka poli cerium oxide:
ʻO ka pauka wiliwili Cerium oxide (VK-Ce01), i hoʻohana nui ʻia no ka wili ʻana i nā huahana aniani, hoʻohana nui ʻia ia ma nā kahua aʻe:
1. Nā aniani, ka hoʻowali ʻana i nā aniani aniani;
2. Lensa maka, aniani maka, lens, a pēlā aku;
3. Aniani pale kelepona paʻalima, ʻili o ka uaki (puka uaki), a pēlā aku;
4. Nānā LCD i nā ʻano pale LCD āpau;
5. Nā Rhinestones, nā daimana wela (nā kāleka, nā daimana ma nā jeans), nā pōpō kukui (nā chandelier hanohano ma ka hale nui);
6. Nā hana lima aniani;
7. Ka hoʻopili hapa ʻana o ka jade
ʻO nā mea hoʻohui poli cerium oxide o kēia manawa:
Ua hoʻohui ʻia ka ʻili o ka cerium oxide me ka alumini e hoʻomaikaʻi nui i kona anai ʻana i ke aniani optical.
Ua manaʻo ke Keʻena Noiʻi a me ka Hoʻomohala ʻenehana o UrbanMines Tech. Limited, ʻo ka hoʻohuihui ʻana a me ka hoʻololi ʻana i ka ʻili o nā ʻāpana polishing nā ʻano hana nui a me nā ala e hoʻomaikaʻi ai i ka pono a me ka pololei o ka polishing CMP. No ka mea, hiki ke hoʻoponopono ʻia nā waiwai o nā ʻāpana ma o ka hoʻohuihui ʻana o nā mea multi-component, a hiki ke hoʻomaikaʻi ʻia ke kūpaʻa o ka hoʻolaha ʻana a me ka pono o ka polishing slurry ma o ka hoʻololi ʻana i ka ʻili. Hiki i ka hoʻomākaukau ʻana a me ka hana polishing o ka pauka CeO2 i hoʻohui ʻia me TiO2 ke hoʻomaikaʻi i ka pono polishing ma mua o 50%, a i ka manawa like, ua hoʻemi ʻia nā hemahema o ka ʻili e 80%. ʻO ka hopena polishing synergistic o CeO2 ZrO2 a me SiO2 2CeO2 composite oxides; no laila, ʻo ka ʻenehana hoʻomākaukau o nā doped ceria micro-nano composite oxides he mea nui loa ia no ka hoʻomohala ʻana i nā mea polishing hou a me ke kūkākūkā ʻana o ka mīkini polishing. Ma waho aʻe o ka nui o ka doping, ʻo ke kūlana a me ka hoʻolaha ʻana o ka dopant i loko o nā ʻāpana i synthesized ʻia e hoʻopilikia nui i ko lākou mau waiwai o ka ʻili a me ka hana polishing.
I waena o lākou, ʻoi aku ka hoihoi o ka synthesis o nā ʻāpana polishing me ke ʻano cladding. No laila, he mea nui loa ke koho ʻana i nā ʻano hana synthetic a me nā kūlana, ʻoiai nā ʻano hana maʻalahi a kūpono hoʻi ke kumukūʻai. Ma ka hoʻohana ʻana i ka hydrated cerium carbonate ma ke ʻano he mea maka nui, ua synthesized ʻia nā ʻāpana polishing cerium oxide i hoʻopaʻa ʻia me ka alumini-doped e ke ʻano mechanochemical wet solid-phase. Ma lalo o ka hana o ka ikaika mechanical, hiki ke ʻoki ʻia nā ʻāpana nui o ka hydrated cerium carbonate i loko o nā ʻāpana liʻiliʻi, ʻoiai ke hana nei ka alumini nitrate me ka wai ammonia e hana i nā ʻāpana colloidal amorphous. Hoʻopili maʻalahi ʻia nā ʻāpana colloidal i nā ʻāpana cerium carbonate, a ma hope o ka maloʻo ʻana a me ka calcination, hiki ke hoʻokō ʻia ka doping alumini ma luna o ka cerium oxide. Ua hoʻohana ʻia kēia ʻano hana e synthesize i nā ʻāpana cerium oxide me nā nui like ʻole o ka doping alumini, a ua wehewehe ʻia kā lākou hana polishing. Ma hope o ka hoʻohui ʻia ʻana o kahi nui kūpono o ka alumini i ka ʻili o nā ʻāpana cerium oxide, e hoʻonui ʻia ka waiwai maikaʻi ʻole o ka hiki ke ʻili, kahi e hana ai i ka hakahaka ma waena o nā ʻāpana abrasive. Aia ka repulsion electrostatic ikaika, kahi e paipai ai i ka hoʻomaikaʻi ʻana i ke kūpaʻa hoʻokuʻu abrasive. I ka manawa like, e hoʻoikaika ʻia ka adsorption like ma waena o nā ʻāpana abrasive a me ka papa palupalu i hoʻopiʻi maikaʻi ʻia ma o ka Coulomb attraction, kahi mea e pono ai ka pilina like ma waena o ka abrasive a me ka papa palupalu ma ka ʻili o ke aniani i hoʻopili ʻia, a paipai i ka hoʻomaikaʻi ʻana o ka wikiwiki polishing.