Hauv tsev neeg loj ntawm lub ntiaj teb tsis tshua muaj,Gadolinium oxide (Gd2O2) hmoovtau dhau los ua lub hnub qub hauv cov ntaub ntawv tshawb fawb hauv zej zog nrog nws lub cev thiab tshuaj lom neeg tshwj xeeb thiab kev siv dav dav. Cov hmoov dawb dawb no tsis yog tsuas yog cov tswv cuab tseem ceeb ntawm cov av tsis tshua muaj oxides, tab sis kuj yog ib qho khoom siv tseem ceeb hauv kev tsim kho kev tshawb fawb thiab thev naus laus zis niaj hnub no. Los ntawm kev kho mob rau kev siv tshuab hluav taws xob nuclear, los ntawm cov khoom sib nqus mus rau cov khoom siv kho qhov muag, gadolinium oxide nyob txhua qhov chaw, qhia txog tus nqi tshwj xeeb ntawm cov ntaub ntawv tsis tshua muaj hauv ntiaj teb.
1. Cov khoom tseem ceeb ntawm gadolinium oxide
Gadolinium oxide hmoovyog lub ntiaj teb tsis tshua muaj oxide nrog lub cubic siv lead ua qauv. Nyob rau hauv nws cov qauv siv lead ua, gadolinium ions thiab oxygen ions tau ua ke hauv ib qho chaw tshwj xeeb los tsim cov tshuaj lom neeg ruaj khov. Cov qauv no muab cov gadolinium oxide melting point txog li 2350 ° C, cia nws nyob ruaj khov nyob rau hauv qhov kub thiab txias.
Hais txog cov khoom siv tshuaj, gadolinium oxide nthuav tawm cov yam ntxwv ntawm alkaline oxide. Nws tuaj yeem cuam tshuam nrog cov kua qaub los tsim cov ntsev sib xws thiab muaj qee yam hygroscopicity. Cov yam ntxwv no xav tau tshwj xeeb cia thiab tuav cov xwm txheej rau gadolinium oxide thaum npaj cov khoom.
Nyob rau hauv cov nqe lus ntawm lub cev khoom, gadolinium oxide muaj zoo heev optical thiab sib nqus zog. Nws muaj lub siab refractive index thiab zoo lub teeb transmittance nyob rau hauv lub pom lub teeb cheeb tsam, uas nteg lub hauv paus rau nws daim ntawv thov nyob rau hauv lub optical teb. Nyob rau tib lub sijhawm, 4f electron plhaub qauv ntawm gadolinium ion muab nws cov khoom sib nqus tshwj xeeb.
Breif kev taw qhia
| Khoom npe | Gadolinium Oxide, Gadolinium (III) oxide |
| Cas | 12064-62-9 |
| MF | gd2o3 ua |
| Molecular Luj | 362.50 Nws |
| Qhov ntom | 7.407 g / cm3 |
| Melting point | 2,420 ° C |
| Qhov tshwm sim | Dawb hmoov |
| Purity | 5N (Gd2O3/REO≥99.999%); 3N (Gd2O3/REO≥ 99.9%) |
| Solubility | Insoluble nyob rau hauv dej, me ntsis soluble nyob rau hauv muaj zog mineral acids |
| Kev ruaj ntseg | Me ntsis hygroscopic |
| Multilingual | Gadolinium Oxid, Oxyde De Gadolinium, Oxido Del Gadolinio Cov |
| Solubility khoom Ksp | 1.8 × 10—23 |
| Crystal qauv | Monoclinic siv lead ua system |
| Hom | Epoch |
2. Core daim ntawv thov thaj chaw ntawm gadolinium oxide
Hauv kev kho mob, daim ntawv thov tseem ceeb tshaj plaws ntawm gadolinium oxide yog cov khoom siv raw rau kev sib nqus resonance imaging (MRI) cov neeg ua haujlwm sib txawv. Gadolinium complexes tuaj yeem hloov pauv lub sijhawm so ntawm cov dej protons, txhim kho cov duab sib piv, thiab muab cov duab pom tseeb rau kev kuaj mob. Daim ntawv thov no tau txhawb nqa kev txhim kho ntawm cov cuab yeej kho mob niaj hnub no.
Hauv cov khoom siv hlau nplaum, gadolinium oxide yog cov khoom siv tseem ceeb rau kev npaj cov khoom sib nqus xws li gadolinium hlau garnet (GdIG). Cov ntaub ntawv no ua lub luag haujlwm tseem ceeb hauv cov khoom siv microwave thiab cov khoom siv magneto-optical, thiab muab cov khoom siv hauv paus rau kev txhim kho kev sib txuas lus niaj hnub.
Hauv kev siv kho qhov muag, gadolinium oxide yog siv dav hauv phosphors, cov ntaub ntawv laser, cov txheej txheem kho qhov muag thiab lwm cov teb vim nws cov khoom kho qhov muag zoo heev. Tshwj xeeb tshaj yog nyob rau hauv kev npaj ntawm high-refractive-index optical films, gadolinium oxide qhia tshwj xeeb zoo.
Hauv kev siv tshuab hluav taws xob nuclear, gadolinium oxide yog siv los ua cov khoom siv hluav taws xob rau cov hluav taws xob hluav taws xob vim nws qhov kev nqus nruab nrab ntawm qhov nruab nrab siab. Daim ntawv thov no tseem ceeb heev rau kev ua haujlwm nyab xeeb ntawm nuclear reactors.
3. Kev txhim kho yav tom ntej ntawm gadolinium oxide
Nrog rau kev nce qib ntawm kev npaj thev naus laus zis, cov txheej txheem synthesis ntawm gadolinium oxide tau ua haujlwm tsis tu ncua. Los ntawm cov txheej txheem txheej txheem txheej txheem txheej txheem rau cov txheej txheem sol-gel siab heev, kev txhim kho ntawm cov txheej txheem kev npaj tau txhim kho qhov purity thiab kev ua tau zoo ntawm gadolinium oxide.
Hauv daim ntawv thov tam sim no, gadolinium oxide qhia tau zoo heev. Hauv kev teeb pom kev zoo hauv lub xeev, quantum suav, kev tswj hwm ib puag ncig thiab lwm yam, cov kws tshawb fawb tab tom tshawb nrhiav kev siv tshiab ntawm gadolinium oxide. Cov kev tshawb fawb no tau qhib cov lus qhia tshiab rau kev txhim kho yav tom ntej ntawm gadolinium oxide.
Los ntawm qhov kev xav ntawm kev lag luam zeem muag, nrog rau kev loj hlob sai ntawm kev lag luam tawm tswv yim xws li lub zog tshiab thiab cov ntaub ntawv tshiab, kev lag luam xav tau rau gadolinium oxide yuav loj hlob ntxiv. Tshwj xeeb tshaj yog nyob rau hauv kev lag luam ntawm high-end manufacturing thiab cutting-edge technology, qhov tseem ceeb ntawm gadolinium oxide yuav tsum ntxiv txhim kho.
Raws li cov tswv cuab tseem ceeb ntawm tsev neeg cov khoom siv hauv ntiaj teb tsis tshua muaj, tus nqi ntawm gadolinium oxide tsis yog tsuas yog cuam tshuam rau nws cov kev siv ntau yam tam sim no, tab sis kuj tseem nyob hauv nws qhov tsis muaj kev txwv hauv kev txhim kho thev naus laus zis yav tom ntej. Los ntawm kev noj qab haus huv kev noj qab haus huv mus rau lub zog thev naus laus zis, los ntawm cov ntaub ntawv kev sib txuas lus mus rau kev tiv thaiv ib puag ncig, gadolinium oxide ua haujlwm tseem ceeb rau kev nce qib ntawm tib neeg kev tshawb fawb thiab thev naus laus zis nrog nws cov khoom tshwj xeeb. Nrog rau kev txhim kho txuas ntxiv ntawm cov ntaub ntawv tshawb fawb, gadolinium oxide yuav muaj tseeb ci nyob rau hauv ntau lub teb thiab txuas ntxiv cov lus dab neeg ntawm cov ntaub ntawv tsis tshua muaj hauv ntiaj teb.
Post lub sij hawm: Feb-20-2025