Scandium oxide, nrog rau cov tshuaj formulaSc2O 3, yog cov khoom dawb uas yog soluble hauv dej thiab kub acid. Vim yog qhov nyuaj ntawm kev rho tawm cov khoom scandium ncaj qha los ntawm scandium uas muaj cov zaub mov, scandium oxide tam sim no tsuas yog rov qab los thiab muab rho tawm los ntawm cov khoom lag luam ntawm scandium uas muaj cov zaub mov xws li khib nyiab, dej khib nyiab, pa taws, thiab av nkos liab.
Cov khoom lag luam zoo
Scandiumyog ib qho khoom lag luam tseem ceeb. Yav dhau los, Lub Tsev Haujlwm Saib Xyuas Kev Ua Haujlwm Hauv Tebchaws Meskas tau tshaj tawm cov npe ntawm 35 cov khoom siv tswv yim (cov ntxhia tseem ceeb) uas suav tias yog qhov tseem ceeb rau Asmeskas kev lag luam thiab kev ruaj ntseg hauv tebchaws (Final List of Critical Minerals 2018). Yuav luag tag nrho cov nyiaj txiag kev lag luam suav nrog, xws li txhuas siv hauv kev lag luam, platinum pab pawg hlau siv hauv catalyst manufacturing, tsis tshua muaj ntiaj teb cov ntsiab lus siv hauv cov khoom siv hluav taws xob, tin thiab titanium siv hauv kev tsim cov hlau, thiab lwm yam.
Kev siv ntawm Scandium Oxide
Ib qho scandium feem ntau yog siv rau hauv cov hlau, thiab scandium oxide kuj ua lub luag haujlwm tseem ceeb hauv cov ntaub ntawv ceramic. Piv txwv li, tetragonal zirconia ceramic cov ntaub ntawv uas tuaj yeem siv los ua cov khoom siv hluav taws xob rau cov khoom siv roj oxide muaj cov khoom tshwj xeeb heev. Cov conductivity ntawm cov electrolyte no nce nrog qhov nce ntawm qhov kub thiab txias thiab oxygen concentration hauv ib puag ncig. Txawm li cas los xij, cov qauv siv lead ua ntawm cov khoom siv ceramic no nws tus kheej tsis tuaj yeem nyob ruaj khov thiab tsis muaj nqi lag luam; nws yuav tsum tau doped nrog qee yam tshuaj uas tuaj yeem kho cov qauv no txhawm rau txhawm rau tswj cov khoom qub. Ntxiv 6-10% ntawm scandium oxide yog zoo li lub pob zeb ua qauv, tso cai rau scandium oxide kom ruaj khov rau ntawm lub pas nrig square.
Scandium oxide kuj tseem siv tau los ua cov densifier thiab stabilizer rau lub zog siab, kub-resistant engineering ceramic khoom silicon nitride. Nws tuaj yeem tsim cov theem refractory Sc2Si2O7 ntawm ntug ntawm cov khoom zoo, yog li txo qhov kub-kub deformation ntawm engineering ceramics. Piv nrog rau ntxiv lwm cov oxides, nws tuaj yeem txhim kho qhov kub-kub txhua yam ntawmsilicon nitride. Ntxiv me me ntawm Sc2O3 rau UO2 hauv high-temperature reactor nuclear fuel tuaj yeem zam kev hloov pauv ntawm lattice, ntim nce thiab tawg los ntawm kev hloov pauv ntawm UO2 rau U3O8.
Scandium oxide tuaj yeem siv los ua cov khoom evaporation rau semiconductor txheej. Scandium oxide kuj tseem siv tau los ua qhov sib txawv-wavelength solid-state lasers, high-txhais TV electron phom, hlau halide teeb, thiab lwm yam.
Kev Tshawb Fawb Kev Lag Luam
Nyob rau hauv xyoo tas los no, scandium oxide tau nyiam ntau thiab ntau dua nyob rau hauv lub teb ntawm domestic khoom oxide roj hlwb (SOFC) thiab scandium sodium halogen teeb. SOFC muaj qhov zoo ntawm lub zog tsim hluav taws xob, kev ua haujlwm siab, kev txuag dej, kev tiv thaiv ib puag ncig ntsuab, kev sib dhos yooj yim, thiab ntau yam kev xaiv roj. Nws muaj cov txiaj ntsig zoo ntawm daim ntawv thov nyob rau hauv kev faib hluav taws xob tsim hluav taws xob, automotive fais fab roj teeb, lub zog cia roj teeb, thiab lwm yam.
Yog xav paub ntxiv txog scandium oxide, pls hu rau peb
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