Cov kws tshawb fawb tau txais cov hlau nplaum nanopowder rau 6G thev naus laus zis
Newswise - Cov ntaub ntawv cov kws tshawb fawb tau tsim txoj kev ceev nrawm rau kev tsim EPSILON hlau oxide thiab ua kom pom nws cov lus cog tseg rau cov khoom sib txuas lus txuas ntxiv. Nws yog cov yeeb yaj kiab zoo tshaj plaws ua rau nws yog cov khoom siv cov khoom siv feem ntau, xws li rau cov khoom sib txuas lus thiab rau cov sib nqus ruaj khov kaw cia. Txoj haujlwm tau luam tawm hauv cov ntaub ntawv xov xwm ntawm cov ntaub ntawv Chemistry c, phau ntawv sau xov xwm ntawm Royal zej zog. Hlau Oxide (III) yog ib qho ntawm feem ntau thoob ntiaj teb Oxides hauv ntiaj teb. Nws yog feem ntau pom tias cov ntxhia habatite (lossis alpha hlau oxide, α-Fe2o3). Lwm qhov ruaj khov kho thiab ib txwm hloov kho yog Maghemite (lossis gamma hloov kho, γ-Fe2o3). Tus qub yog dav siv nyob rau hauv kev lag luam ua tus xim liab, thiab tom kawg ua cov ntaub ntawv kaw nruab nrab. Ob qhov kev hloov kho tsis yog nyob rau hauv crystalline qauv (aluminium hlau oxide muaj hexagonal Syngony thiab Gamiaman-hlau oxide muaj cov cubic syngony) tab sis kuj tseem nyob hauv cov khoom sib nqus. Ntxiv rau cov ntawv no ntawm cov hlau oxide (III), muaj ntau cov kev sib txawv xws li EPSilon-, Beta-, Zeta-, thiab txawm tsom iav. Cov theem txaus nyiam tshaj plaws yog EPSilon hlau oxide, ε-fe2o3. Qhov kev hloov kho no muaj qhov sib zog ua kom muaj zog heev (muaj peev xwm ntawm cov khoom siv los tiv thaiv cov khoom sib nqus sab nraud). Lub zog mus txog 20 Koe ntawm chav tsev kub, uas yog piv rau cov tsis sib piv ntawm cov hlau nplaum raws li cov khoom kim tsawg-tsawg-ntiaj teb. Tsis tas li ntawd, cov khoom nqus hluav taws xob hluav taws xob hluav taws xob hauv cov khoom siv hauv qab no yog ib qho ntawm cov khoom sib txuas lus hauv Wireless Qhov Kev Sib Txuas Lus - 4G Txheem siv megahertz thiab 5g siv kaum tawm ntawm gigaherz. Muaj cov phiaj xwm los siv cov subahertz ntau li kev ua haujlwm ntau tiam (6g) wireless technology, uas tau npaj rau cov lus qhia nquag hauv peb lub neej txij thaum 2030s. Cov khoom siv tau tsim nyog yog tsim nyog rau kev tsim cov kev hloov pauv lossis cov nqus hluav taws xob ntawm cov zaus no. Piv txwv li, los ntawm kev siv Composite ε-Fe2O Nanopowders nws yuav ua tau kom cov xim uas nqus tau cov paib sib xyaw, thiab tiv thaiv cov cim hluav taws xob ntxiv, thiab tiv thaiv cov cim hluav taws xob ntxiv, thiab tiv thaiv cov cim los ntawm kev cuam tshuam los ntawm sab nraud. Lub Iε-FE2O3 nws tus kheej kuj tseem tuaj yeem siv rau hauv 6g txais tos cov khoom siv. EPSILON hlau oxide yog ib daim ntawv tsawg heev thiab nyuaj ntawm hlau oxide kom tau. Niaj hnub no, nws yog tsim nyob rau hauv ntau me me, nrog cov txheej txheem nws tus kheej noj li ib hlis. Qhov no, tau kawg, kev cai tawm nws cov ntawv thov thoob plaws. Cov sau phau ntawv ntawm kev tshawb fawb tau tsim ib txoj kev rau cov hlau ua kom nrawm dua ntawm cov khoom siv hluav taws xob ntau dua 30 zaug sai dua!) Thiab nce qhov ntau ntawm cov khoom lag luam Cov. Cov txheej txheem yog yooj yim rau cov me nyuam, pheej yig thiab tuaj yeem ua tau yooj yim hauv kev lag luam, thiab cov ntaub ntawv uas yuav tsum tau ua rau synthesis - yog cov silicon - yog cov khoom muaj ntau tshaj plaws hauv ntiaj teb. "Txawm hais tias Epsilon-hlau oxide theem tau muab nyob rau hauv daim ntawv ntshiab ntev ntev dhau los, piv txwv li qhov kev sib tw ntawm nws cov khoom siv sib nqus - sau cia. Peb tau tswj kom yooj yim los daws cov cuab yeej technology, "Adveny Gorgachev, PhD tus tub ntxhais kawm nyob rau hauv Lub Chaw Haujlwm Saib Xyuas Moscow thiab thawj tus sau ntawm kev ua haujlwm. Tus yuam sij rau kev thov kev vam meej ntawm cov ntaub ntawv nrog cov cim tshem tawm yog kev tshawb fawb mus rau hauv lawv lub cev lub cev. Yog tias tsis muaj kev tshawb nrhiav tob, cov khoom yuav tsis nco qab txog ntau xyoo, raws li tau tshwm sim ntau dua ib zaug hauv keeb kwm kev tshawb fawb. Nws yog Tandem ntawm cov ntaub ntawv cov kws tshawb fawb ntawm Moscow State University, uas yog ua raws li cov lus sib txuas, thiab teev nws kom meej, uas tau ua tiav kev ua tiav.
Lub sij hawm ncua: Jul-04-2022 