Scandiumyog ib qho tshuaj lom neeg nrog lub cim cimScthiab atomic naj npawb 21. Lub ntsiab yog ib tug mos, silver-dawb hloov pauv hlau uas feem ntau tov nroggadolinium nyob rau hauv cov ntshav, erbium, thiab lwm yam. Cov zis yog tsawg heev, thiab nws cov ntsiab lus nyob rau hauv lub ntiaj teb crust yog hais txog 0.0005%.
1. Tus paub tsis meej ntawmscandiumkeeb Lub melting point ntawmscandiumyog 1541 ℃, lub boiling point yog 2836 ℃, thiab qhov ceev yog 2.985 g / cm³. Scandium yog ib lub teeb, silver-dawb hlau uas kuj yog heev reactive tshuaj thiab muaj peev xwm hnov mob nrog dej kub los tsim hydrogen. Yog li ntawd, cov hlau scandium uas koj pom hauv daim duab yog kaw rau hauv lub raj mis thiab tiv thaiv nrog argon roj. Txwv tsis pub, lub scandium yuav sai sai tsim cov xim daj lossis grey oxide txheej thiab plam nws cov xim hlau ci ci.
2. Kev siv tseem ceeb ntawm scandium Kev siv scandium (raws li cov khoom siv tseem ceeb, tsis yog rau doping) yog tsom rau hauv cov lus qhia uas ci heev, thiab nws tsis yog qhov exaggeration hu nws tus tub ntawm lub teeb. 1). Scandium sodium teeb tuaj yeem siv los coj teeb rau ntau txhiab tsev neeg. Qhov no yog hlau halide hluav taws xob lub teeb qhov chaw: lub teeb yog ntim nrog sodium iodide thiab scandium iodide, thiab scandium thiab sodium foil ntxiv rau tib lub sijhawm. Thaum lub sij hawm high-voltage tawm, scandium ions thiab sodium ions feem emit lub teeb nrog lawv cov yam ntxwv emission wavelengths. Cov kab spectral ntawm sodium yog ob lub npe daj daj ntawm 589.0 thiab 589.6nm, thaum lub spectral kab ntawm scandium yog ib tug series ntawm ze-ultraviolet thiab xiav lub teeb emissions ntawm 361.3 mus rau 424.7nm. Vim tias lawv yog cov xim sib xyaw ua ke, tag nrho lub teeb xim tsim yog lub teeb dawb. Nws yog precisely vim hais tias lub scandium sodium teeb muaj cov yam ntxwv ntawm high luminous efficiency, zoo lub teeb xim, lub zog txuag, lub neej ntev kev pab cuam thiab muaj zog pos huab-tawg muaj peev xwm uas yuav tau lug siv nyob rau hauv lub TV koob yees duab thiab squares, chaw ntau pob, thiab txoj kev teeb pom kev zoo, thiab hu ua tiam peb. qhov kaj. Hauv Suav teb, lub teeb zoo li no tau maj mam nce raws li cov thev naus laus zis tshiab, tab sis hauv qee lub tebchaws tsim kho, lub teeb zoo li no tau siv dav thaum ntxov li xyoo 1980s. 2). Lub hnub ci photovoltaic hlwb tuaj yeem sau lub teeb tawg rau hauv av thiab tig mus rau hauv hluav taws xob uas ua rau tib neeg lub neej. Scandium yog qhov zoo tshaj plaws barrier hlau nyob rau hauv hlau-insulator-semiconductor silicon photovoltaic hlwb thiab hnub ci hlwb 3). Gamma ray qhov chaw, riam phom khawv koob no tuaj yeem tawm lub teeb zoo ntawm nws tus kheej, tab sis lub teeb zoo li no tsis tuaj yeem txais los ntawm peb qhov muag liab qab. Nws yog lub zog photon txaus. Qhov peb feem ntau rho tawm los ntawm cov zaub mov yog 45Sc, uas yog tib lub ntuj isotope ntawm scandium. Txhua 45Sc nucleus muaj 21 protons thiab 24 neutrons. Yog tias peb muab scandium rau hauv lub tshuab hluav taws xob nuclear thiab cia nws nqus cov hluav taws xob neutron, ib yam li tso ib tug liab nyob rau hauv Taishang Laojun lub alchemy rauv rau 7,749 hnub, 46Sc nrog ib tug ntxiv neutron nyob rau hauv lub nucleus yuav yug los. 46Sc, ib qho khoom siv hluav taws xob hluav taws xob isotope, tuaj yeem siv los ua gamma ray qhov chaw lossis tracer atom, thiab tseem tuaj yeem siv rau kev siv xov tooj cua ntawm cov qog nqaij hlav malignant. Muaj ntau suav tsis txheeb siv xws li yttrium-gallium-scandium garnet lasers, scandium fluoride iav infrared optical fibers, thiab scandium-coated cathode ray tubes hauv TV teeb. Nws zoo nkaus li tias scandium yog destined kom ci. 3 、 Cov sib xyaw ua ke ntawm scandium 1). Terbium scandate (TbScO3) siv lead ua - muaj lattice zoo txuam nrog perovskite qauv superconductors, thiab yog ib qho zoo heev ferroelectric nyias zaj duab xis substrate khoom
2).Aluminium scandium alloy- Ua ntej, nws yog qhov ua tau zoo ntawm aluminium alloy. Muaj ntau txoj hauv kev los txhim kho kev ua haujlwm ntawm aluminium alloys. Ntawm lawv, microalloying thiab ntxiv dag zog thiab toughening tau ua ntej ntawm kev ua haujlwm siab aluminium alloy kev tshawb fawb hauv 20 xyoo dhau los. Hauv kev tsim nkoj, aerospace Daim ntawv thov kev cia siab nyob rau hauv high-tech sectors xws li kev lag luam, foob pob ua ntxaij missile, thiab nuclear zog yog dav heev. 3).Scandium oxide- Scandium oxide muaj lub cev zoo thiab tshuaj lom neeg, yog li nws muaj ntau yam kev siv hauv kev tshawb fawb ntawm cov ntaub ntawv. Ua ntej, scandium oxide tuaj yeem siv los ua cov khoom siv ntxiv hauv cov khoom siv ceramic, uas tuaj yeem txhim kho hardness, lub zog thiab hnav tsis kam ntawm ceramics, ua rau lawv ruaj khov dua. Tsis tas li ntawd, scandium oxide kuj tuaj yeem siv los npaj cov ntaub ntawv kub kub superconductor. Cov ntaub ntawv no muaj cov khoom siv hluav taws xob zoo ntawm qhov kub thiab txias thiab muaj peev xwm siv tau zoo. Post lub sij hawm: Nov-01-2024