Iko kukurumidza kukura muminda yeruzivo uye optoelectronics kwakasimudzira kuenderera mberi kwekuvandudza kwemakemikari mechanical polishing (CMP) tekinoroji.Pamusoro pemidziyo uye zvigadzirwa, kuwanikwa kwe-ultra-high-precision surfaces kunonyanya kutsamira pakugadzirwa uye kugadzirwa kwemaindasitiri kweakanyanya-kunyatsoshanda abrasive particles, pamwe nekugadzirira kweanoenderana polishing slurry.Uye nekuenderera mberi nekuvandudzika kwekurongeka kwepamusoro uye nekuita zvinodiwa, zvinodiwa zvemhando yepamusoro yekupolisha zvinhu zviri kuramba zvichikwira nekukwira.Cerium dioxide yakashandiswa zvakanyanya mukugadzirwa kwepamusoro kweiyo microelectronic zvishandiso uye chaiyo yekuona zvinhu.
Cerium oxide polishing poda (VK-Ce01) poda yekupukuta ine zvakanakira zvekucheka kwakasimba kugona, kukwenenzvera kwepamusoro, kunyatsokwenenzverwa kwepamusoro, kunaka kwekupenya, nzvimbo yekushanda yakachena, kusvibiswa kwakaderera, hupenyu hurefu hwebasa, nezvimwewo, uye inoshandiswa zvakanyanya optical precision polishing uye CMP, etc. munda unotora nzvimbo yakakosha zvakanyanya.
Zvinhu zvakakosha zvecerium oxide:
Ceria, inozivikanwawo secerium oxide, inonzi oxide yecerium.Panguva ino, valence yecerium ndeye +4, uye kemikari formula ndeye CeO2.Chigadzirwa chakachena chichena chinorema poda kana cubic crystal, uye chigadzirwa chisina kuchena chero kana kunyange pink kune yakatsvuka-brown poda (nekuti ine trace uwandu hwelanthanum, praseodymium, nezvimwewo).Pakupisa kwekamuri uye kumanikidzwa, ceria iokisidhi yakagadzikana yecerium.Cerium inogonawo kugadzira +3 valence Ce2O3, iyo isina kugadzikana uye inoumba yakagadzikana CeO2 ine O2.Cerium oxide inonyungudika zvishoma mumvura, alkali uye asidhi.Density i7.132 g/cm3, panonyungudika i2600℃, uye panovira i3500℃.
Kuchenesa nzira yecerium oxide
Kuoma kweCeO2 zvimedu hazvina kukwirira.Sezvinoratidzwa mutafura iri pasi apa, kuoma kwecerium oxide kwakaderera zvikuru kudarika kwedhaimondi uye aluminium oxide, uyewo kuderera kudarika zirconium oxide uye silicon oxide, iyo yakaenzana neferric oxide.Naizvozvo hazvigoneke nehunyanzvi hwekubvisa silicon oxide-yakavakirwa zvinhu, senge silicate girazi, girazi requartz, nezvimwewo, ine ceria ine kuomarara kwakaderera kubva pamichina yekuona chete.Nekudaro, cerium oxide parizvino ndiyo yakasarudzika poda yekupukuta yekupukuta silicon oxide-yakavakirwa zvinhu kana kunyange silicon nitride zvinhu.Zvinogona kuoneka kuti cerium oxide polishing inewo zvimwe zvinokonzeresa kunze kwemakanika mhedzisiro.Kuomarara kwedhaimondi, rinova chinhu chinowanzo shandiswa pakukuya nekupukuta, kazhinji chine nzvimbo dzeokisijeni muCeO2 lattice, iyo inoshandura chimiro chayo chemuviri uye chemakemikari uye ine imwe mhedzisiro pakupukuta.Inowanzo shandiswa cerium oxide polishing powders ine imwe huwandu hwemamwe maokisi epasi asingawanzo.Praseodymium oxide (Pr6O11) zvakare ine face-centered cubic lattice chimiro, iyo yakakodzera kukwenenzverwa, nepo mamwe lanthanide isingawanzo pasi oxides asina kugona kupenya.Pasina kushandura chimiro chekristaro cheCeO2, inogona kugadzira mhinduro yakasimba nayo mukati meimwe nhanho.Kune yakakwirira-kuchena nano-cerium oxide polishing poda (VK-Ce01), iyo yakakwirira kuchena kwecerium oxide (VK-Ce01), iyo yakakura kugona kwekupenya uye hupenyu hwesevhisi hurefu, kunyanya yegirazi rakaoma uye quartz optical lenses nguva refu.Kana cyclic polishing, zvinokurudzirwa kushandisa high-purity cerium oxide polishing powder (VK-Ce01).
Kushandiswa kwecerium oxide polishing powder:
Cerium oxide polishing poda (VK-Ce01), inonyanya kushandiswa kugadzira zvigadzirwa zvegirazi, inonyanya kushandiswa mundima dzinotevera:
1. Magirazi, kupenya kwegirazi regirazi;
2. Optical lens, optical glass, lens, nezvimwewo;
3. girazi regirazi regirazi refoni, nzvimbo yekutarisa (musuo wevarindi), nezvimwewo;
4. LCD inotarisa marudzi ose eLCD skrini;
5. Rhinestones, madhaimani anopisa (makadhi, madhaimondi pa jeans), mabhora ekuvhenekera (machandelier eumbozha muimba huru);
6. Crystal crafts;
7. Kukwenenzvera kwejade
Ikozvino cerium oxide polishing derivatives:
Iyo pamusoro pecerium oxide yakashongedzwa nealuminium kuti ivandudze zvakanyanya kupenya kwayo kwegirazi remaziso.
Iyo Tekinoroji Yekutsvagisa uye Kuvandudza Dhipatimendi reUrbanMines Tech.Yakaganhurirwa, yakaratidza kuti kusanganisa uye kugadziridzwa kwepasi kwezvimedu zvekupolisha ndiyo nzira huru uye nzira dzekuvandudza kugona uye kurongeka kweCMP polishing.Nekuti iyo particle zvivakwa zvinogona kugadziridzwa nekubatanidzwa kweakawanda-chikamu zvinhu, uye kupararira kugadzikana uye kukwenenzverwa kwekuita kwe polishing slurry kunogona kuvandudzwa nekugadziriswa kwepasi.Kugadzirira uye kukwenenzverwa kwekuita kweCeO2 poda yakashongedzwa neTiO2 inogona kuvandudza kukwenenzverwa kweanopfuura makumi mashanu muzana, uye panguva imwecheteyo, kuremara kwepasi kunoderedzwawo ne80%.The synergistic polishing effect yeCeO2 ZrO2 uye SiO2 2CeO2 composite oxides;saka, tekinoroji yekugadzirira yedoped ceria micro-nano composite oxides yakakosha zvikuru pakugadzirwa kwezvinhu zvitsva zvekupolisha uye nhaurirano yekupolisha michina.Pamusoro pehuwandu hwedoping, iyo nyika uye kugovera kweiyo dopant muzvikamu zvakasanganiswa zvakare zvinokanganisa zvakanyanya zvimiro zvavo zvepamusoro uye kukwenenzvera kuita.
Pakati pavo, iyo synthesis yekupuruzira masisitimu ane cladding chimiro inonyanya kutaridzika.Nokudaro, kusarudzwa kwemaitiro ekugadzira uye mamiriro ezvinhu zvakakoshawo zvikuru, kunyanya iyo nzira dziri nyore uye dzinodhura.Kushandisa hydrated cerium carbonate sechinhu chikuru chakasvibirira, aluminium-doped cerium oxide polishing particles yakagadziridzwa nemvura yakasimba-phase mechanochemical method.Pasi pechiito chesimba remagetsi, zvimedu zvakakura zvehydrated cerium carbonate zvinogona kutsemurwa kuita zvimedu zvakanaka, nepo aluminium nitrate inopindirana nemvura yeammonia kuita amorphous colloidal particles.Iyo colloidal particles inosungirirwa nyore nyore kune cerium carbonate particles, uye mushure mekuoma uye calcination, aluminium doping inogona kuwanikwa pamusoro pecerium oxide.Iyi nzira yakashandiswa kugadzira cerium oxide zvimedu zvine huwandu hwakasiyana hwealuminium doping, uye kupenya kwavo kwakaonekwa.Mushure mokunge chiyero chakakodzera chealuminium chakawedzerwa pamusoro pecerium oxide particles, kukosha kwakashata kwepamusoro kunogona kuwedzera, izvo zvakazoita kuti mukaha pakati pezvimedu zvinoputika.Iko kune yakasimba electrostatic repulsion, iyo inosimudzira kuvandudzwa kweabrasive suspension stability.Panguva imwecheteyo, iyo mutual adsorption pakati peabrasive particles uye yakanatswa yakapfava yakapfava layer kuburikidza neCoulomb kukwezva ichasimbiswa zvakare, iyo inobatsira kune kuwirirana pakati peabrasive uye yakapfava layer pamusoro pegirazi rakakwenenzverwa, uye inosimudzira. kuvandudzwa kwehuwandu hwekupenya.