Tsoelo-pele e potlakileng masimong a tlhahisoleseling le li-optoelectronics e khothalelitse ntlafatso e tsoelang pele ea theknoloji ea "chemical mechanical polishing" (CMP). Ntle le lisebelisoa le lisebelisoa, ho fumanoa ha libaka tse phahameng ka ho fetisisa ho itšetlehile haholo ka moralo le tlhahiso ea indasteri ea likaroloana tse nang le matla a holimo, hammoho le ho lokisetsa slurry e lumellanang le polishing. 'Me ka ntlafatso e tsoelang pele ea ho nepahala ha ts'ebetso ea holim'a metsi le litlhoko tse sebetsang hantle, litlhoko tsa lisebelisoa tsa ho belisa tse sebetsang hantle le tsona li ntse li phahama. Cerium dioxide e 'nile ea sebelisoa haholo machining a holimo a holimo a lisebelisoa tsa microelectronic le likarolo tse nepahetseng tsa optical.
Cerium oxide polishing powder (VK-Ce01) phofo e benyang e na le melemo ea bokhoni bo matla ba ho itšeha, bokhoni bo phahameng ba ho bentša, ho nepahala ho phahameng, boleng bo botle ba ho bentša, tikoloho e hloekileng ea ts'ebetso, tšilafalo e tlaase, bophelo bo bolelele ba tšebeletso, joalo-joalo, 'me e sebelisoa haholo optical precision polishing le CMP, joalo-joalo e nka boemo ba bohlokoa haholo.
Lintho tsa motheo tsa cerium oxide:
Ceria, eo hape e tsejoang e le cerium oxide, ke oxide ea cerium. Ka nako ena, valence ea cerium ke +4, 'me foromo ea lik'hemik'hale ke CeO2. Sehlahisoa se hloekileng ke phofo e boima e tšoeu kapa cubic crystal, 'me sehlahisoa se sa hloekang se mosehla o mosehla kapa o pinki ho ea ho phofo e bofubelu bo bofubelu (hobane e na le palo ea lanthanum, praseodymium, joalo-joalo). Ka mocheso oa kamore le khatello, ceria ke oxide e tsitsitseng ea cerium. Cerium e ka boela ea theha +3 valence Ce2O3, e sa tsitsang 'me e tla theha CeO2 e tsitsitseng le O2. Cerium oxide e qhibiliha hanyane ka metsing, alkali le asiti. The density ke 7.132 g/cm3, melting point ke 2600℃, le beling point ke 3500℃.
Mokhoa oa ho benya oa cerium oxide
Boima ba likaroloana tsa CeO2 ha bo phahame. Joalokaha ho bontšitsoe tafoleng e ka tlase, boima ba cerium oxide bo tlase haholo ho feta taemane le aluminium oxide, hape bo tlase ho feta ba zirconium oxide le silicon oxide, e lekanang le ferric oxide. Ka hona, ha ho khonehe ka botekgeniki ho senya thepa e thehiloeng ho silicon oxide, joalo ka khalase ea silicate, khalase ea quartz, joalo-joalo, ka ceria e nang le boima bo tlase ho tloha ponong ea mochini feela. Leha ho le joalo, cerium oxide hajoale ke phofo e benyang e ratoang bakeng sa ho bentša lisebelisoa tse thehiloeng ho silicon oxide kapa esita le lisebelisoa tsa silicon nitride. Ho ka bonoa hore polishing ea cerium oxide e boetse e na le litlamorao tse ling ntle le litlamorao tsa mochini. Ho thatafala ha daemane, e leng ntho e sebelisoang ka tloaelo ho sila le ho bentša, hangata ho na le likheo tsa oksijene ka har'a letlapa la CeO2, le fetolang sebopeho sa eona sa 'mele le lik'hemik'hale mme se na le tšusumetso e itseng linthong tsa ho bentša. Li-powders tse sebelisoang ka tloaelo tsa cerium oxide polishing li na le palo e itseng ea li-oxide tsa lefatše tse sa tloaelehang. Praseodymium oxide (Pr6O11) e boetse e na le sebopeho sa li-cubic lattice se bohareng ba sefahleho, se loketseng ho belisoa, ha li-oxide tse ling tsa lefatše tse sa tloaelehang tsa lanthanide ha li na bokhoni ba ho bentša. Ntle le ho fetola sebopeho sa kristale sa CeO2, se ka etsa tharollo e tiileng le eona ka har'a mefuta e itseng. Bakeng sa bohloeki bo phahameng ba nano-cerium oxide polishing powder (VK-Ce01), ho hloeka ha cerium oxide (VK-Ce01) ho phahame, ho matlafatsa bokhoni ba ho bentša le bophelo bo bolelele ba tšebeletso, haholo-holo bakeng sa likhalase tse thata le lilense tsa quartz optical. nako e telele. Ha cyclic polishing, ho eletsoa ho sebelisa phofo e phahameng ea cerium oxide polishing powder (VK-Ce01).
Tšebeliso ea phofo ea cerium oxide polishing:
Cerium oxide polishing powder (VK-Ce01), e sebelisetsoang ho bentša lihlahisoa tsa khalase, e sebelisoa haholo-holo likarolong tse latelang:
1. Likhalase, ho bentša lense ea khalase;
2. Lense ea mahlo, khalase ea optical, lense, joalo-joalo;
3. Khalase ea skrine ea selefouno, sebaka sa ho shebella (monyako oa ho shebella), joalo-joalo;
4. LCD hlokomela mefuta eohle ea LCD skrine;
5. Li-Rhinestones, litaemane tse chesang (likarete, litaemane holim'a jeans), libolo tsa mabone (li-chandeliers tsa mabothobotho holong e kholo);
6. Mesebetsi ea matsoho ea kristale;
7. Ho belisoa ha karolo ea jade
Lintho tse tsoang hona joale tsa cerium oxide polishing:
Bokaholimo ba cerium oxide bo entsoe ka aluminium ho ntlafatsa haholo ho belisoa ha khalase ea optical.
Lefapha la Patlisiso le Ntlafatso ea Theknoloji ea UrbanMines Tech. Limited, e hlahisitse hore ho kopanya le ho fetola bokaholimo ba likaroloana tsa polishing ke mekhoa le mekhoa e meholo ea ho ntlafatsa katleho le ho nepahala ha ho belisoa ha CMP. Hobane thepa ea likaroloana e ka hlophisoa ka ho kopanngoa ha likarolo tse ngata, 'me botsitso ba ho hasana le ho sebetsa hantle ha polishing slurry ho ka ntlafatsoa ka ho fetola holim'a metsi. Ts'ebetso ea ho lokisoa le ho belisoa ha phofo ea CeO2 e entsoeng ka TiO2 e ka ntlafatsa ts'ebetso ea polishing ka ho feta 50%, 'me ka nako e ts'oanang, mefokolo ea holim'a metsi e fokotsehile ka 80%. Phello ea synergistic polishing ea CeO2 ZrO2 le SiO2 2CeO2 composite oxides; ka hona, theknoloji ea ho lokisa ea doped ceria micro-nano composite oxides ke ea bohlokoa haholo bakeng sa nts'etsopele ea lisebelisoa tse ncha tsa ho bentša le puisano ea mochine oa ho bentša. Ho phaella ho palo ea doping, boemo le kabo ea dopant ka likaroloana tse entsoeng li boetse li ama haholo thepa ea bona ea holim'a metsi le ts'ebetso ea polishing.
Har'a tsona, motsoako oa likaroloana tsa polishing tse nang le sebopeho sa cladding o khahleha haholoanyane. Ka hona, khetho ea mekhoa le maemo a maiketsetso le tsona ke tsa bohlokoa haholo, haholo-holo mekhoa e bonolo le e theko e tlaase. Ho sebelisa hydrated cerium carbonate e le thepa e ka sehloohong e tala, aluminium-doped cerium oxide polishing particles e ile ea etsoa ka mokhoa o metsi o tiileng-phase mechanochemical method. Tlas'a ketso ea matla a mochine, likaroloana tse kholo tsa hydrated cerium carbonate li ka phunyeletsoa ka likaroloana tse ntle, ha aluminium nitrate e arabela ka metsi a ammonia ho etsa likaroloana tsa amorphous colloidal. Likaroloana tsa colloidal li kopantsoe habonolo le likaroloana tsa cerium carbonate, 'me ka mor'a ho omisa le calcination, doping ea aluminium e ka finyelloa holim'a cerium oxide. Mokhoa ona o ne o sebelisetsoa ho kopanya likaroloana tsa cerium oxide ka bongata bo fapaneng ba doping ea aluminium, 'me ts'ebetso ea bona ea ho bentša e ne e khetholloa. Ka mor'a hore palo e loketseng ea aluminium e kenngoe holim'a likaroloana tsa cerium oxide, boleng bo bobe ba matla a holimo bo ne bo tla eketseha, e leng se ileng sa etsa hore ho be le lekhalo pakeng tsa likaroloana tsa abrasive. Ho na le repulsion e matla ea electrostatic, e khothalletsang ntlafatso ea botsitso ba ho fanyeha ha abrasive. Ka nako e ts'oanang, papatso e kopanetsoeng pakeng tsa likaroloana tsa abrasive le lesela le bonolo le qosoang hantle ka ho hohela Coulomb le eona e tla matlafatsoa, e leng molemo oa ho kopana pakeng tsa abrasive le lera le bonolo holim'a khalase e bentšitsoeng, 'me e khothalletsa ntlafatso ea sekhahla sa ho belisoa.