Umsebenzi Waphezulu Nokusebenza Kahle Kokucubungula Kwe-White Fused Alumina Micropowder
Uma kukhulunywa ngokugaya nokupholisha, izingcweti ezinolwazi zihlala zithi, “Ingcweti enekhono kumele iqale ilole amathuluzi ayo.” Ezweni lobuchwepheshe bokukhanda ngokunemba,i-alumina micropowder emhlophe ehlanganisiwe "iyindlu enamandla ephansi kakhulu." Ungazithathi kalula lezi zinhlayiya ezincane, ezifana nothuli; ngaphansi kwe-microscope, zidlala indima ebalulekile ekunqumeni ukuthi ngabe umsebenzi ekugcineni ufinyelela ukukhanya "okufana nesibuko" noma awufinyeleli yini okulindelwe. Namuhla, ake sixoxe ngezici ezibalulekile zobudlelwano phakathi "komsebenzi wobuso" be-alumina micropowder emhlophe ehlanganisiwe kanye nokusebenza kwayo kahle kokucubungula.
I. I-White Fused Alumina Micropowder: Okungaphezu Kokuthi “Kunzima”
I-alumina emhlophe ehlanganisiwe, eyakhiwe ngokuyinhlokoi-α-alumina, yaziwa ngobulukhuni bayo obuphezulu kanye nokuqina okuhle. Kodwa-ke, uma yenziwe ibe yi-micropowder, ikakhulukazi imikhiqizo enobukhulu bezinhlayiya ezilinganiswa ngama-micrometer noma ngisho nama-nanometer, umhlaba wayo uba yinkimbinkimbi kakhulu. Kuleli qophelo, ukuhlola ukusetshenziswa kwayo kudinga okungaphezu kokubheka ubulukhuni bayo; "umsebenzi wayo wobuso" ubalulekile.
Uyini umsebenzi wobuso? Ungakuqonda ngale ndlela: Cabanga ngenqwaba yempuphu encane. Uma inhlayiya ngayinye ifana nebhola elincane elibushelelezi, “inomusa” komunye nomunye, khona-ke ukusebenzisana kwayo nobuso bomsebenzi kanye noketshezi lokugaya “akusebenzi” kakhulu, futhi umsebenzi wazo uyashesha ngokwemvelo. Kodwa uma lezi zinhlayiya “zinemiphetho” noma ziphethe “imishini yokushaja” ekhethekile noma “amaqembu amakhemikhali,” khona-ke ziba “zisebenza,” zibambe kalula “ubuso bomsebenzi” kalula, futhi zizimisele kakhulu ukuhlakazeka ngokulinganayo oketshezini, kunokuba zihlangane futhi zihlehle. Leli zinga lomsebenzi ezimpahleni zomzimba nezamakhemikhali zobuso ngumsebenzi walo wobuso.
Lo msebenzi uvelaphi? Okokuqala, izinqubo zokugaya nokuhlukanisa yizona "izici zokwakheka." Ukugaya ngomshini kukhiqiza kalula izindawo ezintsha, ezinamandla aphezulu eziphukile, okuholela emsebenzini ophezulu kodwa okungenzeka kube ukusatshalaliswa kosayizi wezinhlayiya ezibanzi; izindawo ezilungiselelwe ngezindlela zamakhemikhali cishe "zihlanzekile" futhi zifane kakhudlwana. Okwesibili, indawo ethile yobuso iyisibonakaliso esibalulekile—uma izinhlayiya zincane, kulapho "indawo yokulwa" inkulu khona engathintana nomsebenzi wesisindo esifanayo. Okubaluleke kakhulu, cabanga ngesimo sobuso: Ingabe buyi-angular futhi bunephutha (enezindawo eziningi ezisebenzayo), noma buyindilinga (bumelana nokuguguleka kakhudlwana kodwa mhlawumbe bunamandla okusika ancishisiwe)? Ingabe ubuso buyi-hydrophilic noma i-oleophilic? Ingabe bushintshe "ubuso" ngokukhethekile, njengokumboza nge-silica noma ezinye izinto zokuhlanganisa ukuze kushintshwe izakhiwo zalo?
II. Ingabe Ukuzivocavoca Okuphezulu “Kuyikhambi Lakho Konke”? Umdanso Oyinkimbinkimbi Osebenza Kahle Ekucubunguleni
Ngokwemvelo, umsebenzi ophezulu wobuso kufanele usho ukucutshungulwa kwe-micropowder okunamandla nokuphumelelayo. Ezimweni eziningi, lokhu kulungile. Ama-micropowder asebenza kakhulu, ngenxa yamandla awo aphezulu obuso kanye nomthamo oqinile wokumunca, anganamathela noma "afake" kakhulu ebusweni bomsebenzi kanye namathuluzi okugaya (njenge-polishing pads), afinyelele ukusika okuncane okuqhubekayo nokulinganayo. Ikakhulukazi ezinqubweni ezinembile njenge-chemical mechanical polishing (CMP), ubuso be-micropowder kanye ne-workpiece (njenge-silicon wafer) kungabhekana nokusabela kwamakhemikhali okubuthakathaka, kuthambise ubuso bomsebenzi, okuthi, kuhlanganiswe nesenzo somshini, kususe, kufezwe umphumela obushelelezi kakhulu "1+1>2". Kulesi simo, umsebenzi usebenza njengesisusa sokusebenza kahle.
Nokho, izinto azilula kangako. Umsebenzi wobuso uyinkemba esika nhlangothi zombili.
Okokuqala, umsebenzi omningi ngokweqile uholela ekuthambekeleni okunamandla kakhulu kwezinhlayiya ezincane ukuhlangana, kwakha izinhlayiya zesibili noma ezinkulu nakakhulu. Cabanga ngalokhu: okwakuwuchungechunge lwemizamo yomuntu ngamunye ekuqaleni manje sekuhlanganiswa ndawonye, kunciphisa inani lezinhlayiya ezisikwe ngempumelelo. Lawa maqoqo amakhulu angashiya nemihuzuko ejulile ebusweni bomsebenzi, kunciphisa ikhwalithi yokucubungula kanye nokusebenza kahle. Kufana neqembu labasebenzi abazimisele kakhulu kodwa abangasebenzisani ndawonye, bephazamisana.
Okwesibili, kwezinye izinhlelo zokusebenza zokucubungula, njengokugaya okuqinile noma ukusika kahle kakhulu kwezinto ezithile eziqinile neziphuka kalula, singadinga izinhlayiya ezincane ukuze sigcine "ubukhali obuzinzile." Umsebenzi ophezulu kakhulu wobuso ungabangela ukuthi izinhlayiya ezincane ziphuke futhi ziguge ngaphambi kwesikhathi ngaphansi kokushaywa kokuqala. Ngenkathi amandla okuqala okusika engaba namandla, ukuqina kuphansi, futhi izinga lokususwa kwezinto lingase lehle ngempela. Ezimweni ezinjalo, izinhlayiya ezincane ezinobuso obuzinzile ngemva kokwelashwa okufanele kokudlula, ngenxa yemiphetho yazo eqinile nobunzima, zinganikeza ukusebenza kahle okungcono kakhulu.
Ngaphezu kwalokho, ukusebenza kahle kokucubungula kuyinkomba enezinhlangothi eziningi: izinga lokususwa kwezinto, ubulukhuni bomphezulu, ukujula kwesendlalelo somonakalo ongaphansi komhlaba, ukuqina kwenqubo, njll. Ama-micropowder asebenza kakhulu angaba nenzuzo ekufinyeleleni ubulukhuni bomphezulu obuphansi kakhulu (ikhwalithi ephezulu), kodwa ukuze kufezwe leli khwalithi ephezulu, ngezinye izikhathi kuyadingeka ukunciphisa ingcindezi noma isivinini, kuncishiswe izinga lokususwa. Indlela yokulinganisa incike ezidingweni ezithile zokucubungula.
III. "Indlela Ehambisanayo": Ukuthola Ibhalansi Efanele Ekusetshenzisweni
Ngakho-ke, ukuxoxa ngezinzuzo zomsebenzi wobuso obuphezulu noma obuphansi ngaphandle kokucabangela isimo esithile sokusetshenziswa akunamsebenzi. Ekukhiqizeni kwangempela, sikhetha "izici zobuso" ezifanele kakhulu "zomsebenzi wokucubungula" othize.
Ukuze kupholishwe ngokunemba okukhulu (njengamalensi optical kanye nama-wafer e-semiconductor): umgomo uwukuba nendawo ephelele esikalini se-athomu. Kulesi simo, kuvame ukukhethwa ama-micropowder asebenza kahle anezigaba eziqondile, ukusatshalaliswa kosayizi wezinhlayiya ezincane kakhulu, kanye nezindawo ezilungiswe ngokucophelela (njenge-silica sol encapsulation). Ukuhlakazeka kwazo okuphezulu kanye nokusebenzisana kwamakhemikhali okuhambisanayo ne-slurry yokupholishwa kubalulekile. Lapha, umsebenzi ngokuyinhloko ukhonza "ikhwalithi ephezulu," kuyilapho ukusebenza kahle kulungiswa ngokulawula okunembile kwamapharamitha enqubo.
Kwezisusa ezivamile, izisusa zebhande, kanye nezimpushana ezine-micron ezisetshenziswa kumasondo okugaya: Ukusebenza okuzinzile kokusika kanye nezakhiwo zokuzilola kubaluleke kakhulu. Impushana ene-micron idinga ukukwazi ukuphuka ngaphansi kwengcindezi ethile, iveze imiphetho emisha ebukhali. Kulesi sigaba, umsebenzi wobuso akufanele ube phezulu kakhulu ukuze kugwenywe ukuhlangana kwangaphambi kwesikhathi noma ukusabela ngokweqile. Ngokulawula ubumsulwa bezinto zokusetshenziswa kanye nezinqubo zokusila, ukuthola izimpushana ezine-micron enesakhiwo esincane esifanele (esinamandla athile ahlangene kunokumane silandele amandla aphezulu obuso) ngokuvamile kuveza ukusebenza kahle kokucubungula okuphelele.
Ngezicelo zokumiswa okusha kanye nokusetshenziswa kwe-slurry: Ukuqina kokusabalala kwempuphu eyenziwe nge-micron kubalulekile. Ukuguqulwa kwendawo (njengokufaka ama-polymer athile noma ukulungisa amandla e-zeta) kumele kusetshenziswe ukunikeza isithiyo esanele se-steric noma ukuxoshwa kwe-electrostatic, okuvumela ukuthi ihlale imiswe ngokulinganayo isikhathi eside ngisho nasesimweni esisebenza kakhulu. Kulesi simo, ubuchwepheshe bokuguqulwa kwendawo bunquma ngqo ukuthi umsebenzi ungasetshenziswa kahle yini, kugwenywe imfucuza ngenxa yokuchitheka noma ukuhlangana, ngaleyo ndlela kuqinisekiswe ukusebenza kahle kokucubungula okuqhubekayo nokuzinzile.
Isiphetho: Ubuciko Bokukwazi “Umsebenzi” Ezweni Le-Microscopic
Njengoba usuxoxe okuningi kangaka, kungenzeka ukuthi usuqaphele ukuthi umsebenzi wangaphandle wei-alumina emhlophe ehlanganisiweI-micropowder kanye nokusebenza kahle kokucubungula akugcini nje ngokulingana. Kufana nokusebenza kahle kwe-balance beam okuklanywe ngokucophelela: kuyadingeka kokubili ukukhuthaza "intshiseko yokusebenza" yenhlayiya ngayinye futhi, ngenqubo nobuchwepheshe, ukuyivimbela ekuphelelweni ngaphakathi noma ekungalawuleki ngenxa "yentshiseko eyeqile." Imikhiqizo ye-micropowder emihle kakhulu kanye namasu okucubungula ayinkimbinkimbi ngokuyisisekelo asekelwe ekuqondeni okujulile kwezinto ezithile kanye nezinhloso ezithile zokucubungula, okubandakanya umklamo "owenziwe ngokwezifiso" kanye nokulawula umsebenzi wobuso be-micropowder. Ulwazi olutholakala "emsebenzini wokuqonda" kuya "emsebenzini wobungcweti" lubonisa ngokusobala ukuguqulwa komshini wokulungisa wesimanje onembile kusuka "emsebenzini wobuciko" kuya "esayensini."
Ngesikhathi esizayo uma ubona umsebenzi ofana nesibuko, mhlawumbe ungacabanga ukuthi kuleyo nkundla yempi engabonakali encane, izinhlayiya ze-alumina micropowder ezimhlophe ezingenakubalwa zilwa empini ephumelelayo nehlelekile ngokubambisana enezindlela "zokuma ezisebenzayo" eziklanywe ngokucophelela. Lokhu kuyindlela encane kakhulu yokuhlanganiswa okujulile kwesayensi yezinto zokwakha kanye nezinqubo zokukhiqiza.