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Hauv kev txhim kho tseem ceeb hauv kev tshawb fawb ntawm cov ntaub ntawv tshawb fawb, cov kws tshawb fawb tau txiav txim siab hauv kev tsim cov khoom siv high-purity α-Al2O3 (alpha-alumina), cov khoom uas paub txog nws cov khoom tshwj xeeb thiab kev siv dav. Qhov no tuaj tom qab ntawm kev thov ua ntej los ntawm Amrute li al. Hauv lawv daim ntawv tshaj tawm xyoo 2019, uas tau hais tias tsis muaj txoj hauv kev uas twb muaj lawm tuaj yeem tsim α-Al2O3 nrog ob qho tib si purity siab thiab thaj chaw saum npoo ntau tshaj qhov pib. Lawv qhov kev tshawb pom tau ua rau muaj kev txhawj xeeb txog cov kev txwv ntawm cov txheej txheem tsim khoom tam sim no thiab qhov cuam tshuam rau kev lag luam vam khom rau cov khoom tseem ceeb no.
Alpha-alumina yog ib daim ntawv ntawm txhuas oxide uas muaj nuj nqis heev rau nws cov hardness, thermal stability, thiab hluav taws xob rwb thaiv tsev zog. Nws yog dav siv nyob rau hauv ntau yam kev siv, xws li ceramics, abrasives, thiab raws li ib tug substrate nyob rau hauv cov khoom siv hluav taws xob. Qhov kev thov rau high-purity α-Al2O3 tau nce siab, tshwj xeeb tshaj yog nyob rau hauv cov khoom siv hluav taws xob thiab cov ceramics siab heev, qhov uas impurities tuaj yeem cuam tshuam rau kev ua tau zoo thiab kev ntseeg tau.
Daim ntawv tshaj tawm 2019 los ntawm Amrute et al. tau hais txog cov kev cov nyom uas cov kws tshawb fawb thiab cov tuam txhab tau ntsib hauv kev ua tiav qhov xav tau purity qib thiab cov yam ntxwv ntawm thaj chaw. Lawv tau sau tseg tias cov txheej txheem ib txwm muaj, xws li cov txheej txheem sol-gel thiab hydrothermal synthesis, feem ntau ua rau cov ntaub ntawv poob qis ntawm cov qauv siab uas yuav tsum tau ua rau cov ntawv thov txiav. Qhov kev txwv no tau ua rau muaj kev cuam tshuam rau kev tsim kho tshiab thiab kev loj hlob hauv ntau qhov kev lag luam high-tech.
Txawm li cas los xij, kev nce qib tsis ntev los no tau pib daws cov teeb meem no. Kev sib koom tes tshawb fawb kev sib koom tes nrog cov kws tshawb fawb los ntawm ntau lub koom haum ua lag luam tau coj mus rau kev txhim kho cov txheej txheem tshiab synthesis uas sib txuas cov txheej txheem qib siab los tsim cov purity siab α-Al2O3 nrog cov cheeb tsam zoo dua qub. Txoj hauv kev tshiab no siv kev sib xyaw ua ke ntawm microwave-pab synthesis thiab tswj cov txheej txheem calcination, tso cai rau kev tswj tau zoo dua ntawm cov khoom siv.
Cov kws tshawb fawb tau tshaj tawm tias lawv txoj kev tsis yog tsuas yog ua tiav qib siab purity xwb tab sis kuj ua rau α-Al2O3 nrog thaj chaw saum npoo uas tshaj cov uas tau tshaj tawm yav dhau los hauv cov ntaub ntawv. Qhov kev tawg no muaj peev xwm qhib txoj hauv kev tshiab rau kev siv α-Al2O3 hauv ntau daim ntawv thov, tshwj xeeb tshaj yog nyob rau hauv cov khoom siv hluav taws xob, qhov twg qhov kev thov rau cov ntaub ntawv ua tau zoo tau nce zuj zus.
Ntxiv rau nws cov ntawv thov hauv electronics, high-purity α-Al2O3 tseem yog ib qho tseem ceeb hauv kev tsim cov ceramics siab heev, uas yog siv rau ntau yam lag luam, suav nrog aerospace, automotive, thiab biomedical. Lub peev xwm los tsim α-Al2O3 nrog cov khoom zoo tuaj yeem ua rau kev txhim kho cov ntaub ntawv tshiab uas sib dua, muaj zog dua, thiab tiv taus hnav thiab corrosion.
Qhov cuam tshuam ntawm qhov kev tshawb fawb no txuas ntxiv tshaj li kev tsim cov khoom siv xwb. Lub peev xwm los tsim cov purity siab α-Al2O3 nrog kev txhim kho saum npoo tuaj yeem ua rau muaj kev nce qib hauv catalysis thiab kev siv ib puag ncig. Piv txwv li, α-Al2O3 feem ntau yog siv los ua ib qho kev txhawb nqa hauv kev siv tshuaj lom neeg, thiab txhim kho nws cov khoom tuaj yeem txhim kho kev ua tau zoo thiab kev ua tau zoo ntawm ntau yam txheej txheem catalytic.
Ntxiv mus, txoj kev sib txuas tshiab tuaj yeem ua rau txoj hauv kev rau kev tshawb fawb ntxiv rau lwm cov txheej txheem txhuas oxide thiab lawv cov kev siv tau. Raws li cov kws tshawb fawb txuas ntxiv mus tshawb txog cov khoom thiab kev coj cwj pwm ntawm cov ntaub ntawv no, muaj kev txaus siab ntau ntxiv hauv lawv cov kev siv hluav taws xob cia, kev kho ib puag ncig, thiab txawm tias nyob rau hauv kev txhim kho cov roj teeb lwm tiam.
Cov kev tshawb pom los ntawm qhov kev tshawb fawb tsis ntev los no tau luam tawm nyob rau hauv ib phau ntawv xov xwm kev tshawb fawb, uas lawv tau txais kev saib xyuas los ntawm ob qho tib si kev kawm thiab kev lag luam. Cov kws tshaj lij hauv thaj chaw tau qhuas txog kev ua haujlwm yog ib kauj ruam tseem ceeb rau kev kov yeej cov kev txwv uas tau txheeb xyuas los ntawm Amrute li al. thiab tau qhia qhov kev cia siab txog yav tom ntej ntawm α-Al2O3 ntau lawm.
Raws li qhov kev thov rau cov ntaub ntawv ua tau zoo txuas ntxiv mus ntxiv, lub peev xwm los tsim cov purity siab α-Al2O3 nrog cov khoom txhim kho yuav yog qhov tseem ceeb. Qhov kev ua tiav no tsis yog tsuas yog hais txog cov kev cov nyom uas tau hais tseg hauv kev tshawb fawb yav dhau los tab sis kuj tau teeb tsa theem rau kev tsim kho tshiab ntxiv hauv cov khoom siv science. Kev sib koom tes ntawm cov kws tshawb fawb thiab cov neeg muaj feem cuam tshuam txog kev lag luam yuav yog qhov tseem ceeb hauv kev txhais cov kev tshawb pom no rau hauv cov ntawv thov uas tuaj yeem tau txais txiaj ntsig ntau ntawm cov haujlwm.
Hauv kev xaus, qhov kev nce qib tsis ntev los no hauv kev tsim cov purity siab α-Al2O3 sawv cev rau qhov tseem ceeb hauv cov khoom siv science. Los ntawm kev kov yeej cov teeb meem uas tau txheeb xyuas hauv cov kev tshawb fawb ua ntej, cov kws tshawb fawb tau qhib qhov muaj peev xwm tshiab rau kev siv cov khoom siv ntau yam no hauv ntau yam kev siv high-tech. Raws li daim teb txuas ntxiv mus, nws yog qhov tseeb tias yav tom ntej ntawm α-Al2O3 thiab nws cov derivatives tuav cov lus cog tseg zoo rau kev tsim kho tshiab thiab kev loj hlob thoob plaws ntau qhov kev lag luam.
Post lub sij hawm: Dec-26-2024
