Kugwiritsa Ntchito Ma Oxides Osawerengeka Kupanga Magalasi a Fluorescent
Kugwiritsa Ntchito Ma Oxides Osawerengeka Kupanga Magalasi a Fluorescent
Kugwiritsa Ntchito Ma Oxides Osawerengeka Kupanga Magalasi a Fluorescent
source: AZoMNtchito za Rare Earth ElementsMafakitale okhazikitsidwa, monga opangira magalasi, zopangira magalasi, zounikira, ndi zitsulo, akhala akugwiritsa ntchito zinthu zapadziko lapansi zomwe sizipezekapezeka kwa nthawi yaitali. Mafakitale otere akaphatikizidwa, amawerengera 59% yazomwe zimagwiritsidwa ntchito padziko lonse lapansi. Tsopano madera atsopano, okulirapo, monga ma aloyi a batri, zoumba, ndi maginito okhazikika, akugwiritsanso ntchito zinthu zapadziko lapansi zomwe sizikupezeka, zomwe zimapanga 41%.Zinthu Zosawerengeka za Earth mu Kupanga MagalasiPankhani ya kupanga magalasi, ma oxides osowa padziko lapansi akhala akuphunziridwa kalekale. Mwachindunji, momwe zinthu za galasi zingasinthire ndi kuwonjezera kwa mankhwalawa. Wasayansi wina wa ku Germany dzina lake Drossbach anayamba ntchito imeneyi m’zaka za m’ma 1800 pamene ankapereka chilolezo ndi kupanga chisakanizo cha ma oxides osowa padziko lapansi kuti awononge magalasi.Ngakhale mu mawonekedwe osakhala ndi ma oxide ena osowa padziko lapansi, iyi inali ntchito yoyamba yogulitsa cerium. Cerium idawonetsedwa kuti ndiyabwino kwambiri pakuyamwa kwa ultraviolet popanda kupereka mtundu mu 1912 ndi Crookes waku England. Izi zimapangitsa kuti zikhale zothandiza kwambiri kwa magalasi oteteza maso.Erbium, ytterbium, ndi neodymium ndi ma REE omwe amagwiritsidwa ntchito kwambiri mugalasi. Kuyankhulana kwa kuwala kumagwiritsa ntchito erbium-doped silica fiber kwambiri; Kukonza zida zauinjiniya kumagwiritsa ntchito ulusi wa ytterbium-doped silica fiber, ndipo ma laser agalasi omwe amagwiritsidwa ntchito pophatikizira m'ndende ya inertial amagwiritsa ntchito neodymium-doped. Kutha kusintha mawonekedwe a fulorosenti ya galasi ndi imodzi mwazinthu zofunika kwambiri za REO mugalasi.Katundu wa Fluorescent kuchokera ku Rare Earth OxidesMwapadera momwe imawonekera wamba pansi pa kuwala kowoneka bwino ndipo imatha kutulutsa mitundu yowoneka bwino ikakondweretsedwa ndi kutalika kwa mafunde ena, galasi la fulorosenti limakhala ndi ntchito zambiri kuchokera ku kujambula kwachipatala ndi kafukufuku wa zamankhwala, kuyesa ma media, kufufuza ndi ma enamel agalasi.Fluorescence imatha kupitilira kugwiritsa ntchito ma REO ophatikizidwa mwachindunji mu matrix agalasi pakusungunuka. Zida zina zamagalasi zokhala ndi zokutira za fulorosenti nthawi zambiri zimalephera.Pakupanga, kukhazikitsidwa kwa ayoni osowa padziko lapansi mu kapangidwe kake kumapangitsa kuti magalasi awonekedwe a fluorescence. Ma electron a REE amakwezedwa kukhala osangalala pamene gwero lamphamvu lomwe likubwera likugwiritsidwa ntchito kusangalatsa ma ion omwe akugwira ntchito mwachindunji. Kuwala kwautali wautali ndi mphamvu zochepa kumabweza mkhalidwe wokondwa kukhala pansi.M'mafakitale, izi ndizothandiza kwambiri chifukwa zimalola kuti magalasi ang'onoang'ono a magalasi akhazikike mugulu kuti azindikire wopanga ndi nambala ya maere amitundu yambiri yazogulitsa.Mayendedwe a chinthucho sakhudzidwa ndi ma microspheres, koma mtundu wina wa kuwala umapangidwa pamene kuwala kwa ultraviolet kumawunikira pa batch, zomwe zimalola kuti zinthuzo zidziwike. Izi ndizotheka ndi mitundu yonse yazinthu, kuphatikiza ufa, mapulasitiki, mapepala, ndi zakumwa.Kusiyanasiyana kwakukulu kumaperekedwa mu ma microspheres posintha chiwerengero cha magawo, monga chiŵerengero cholondola cha REO zosiyanasiyana, kukula kwa tinthu, kugawa kwa tinthu tating'onoting'ono, kapangidwe ka mankhwala, mphamvu za fulorosenti, mtundu, maginito, ndi ma radioactivity.Ndizothandizanso kupanga ma microspheres a fulorosenti kuchokera pagalasi chifukwa amatha kupangidwa mosiyanasiyana ndi ma REO, kupirira kutentha kwambiri, kupsinjika kwambiri, komanso kukhala osagwiritsa ntchito mankhwala. Poyerekeza ndi ma polima, ndi apamwamba m'madera onsewa, zomwe zimawathandiza kuti azigwiritsidwa ntchito mochepa kwambiri muzogulitsa.Kusungunuka kwapang'onopang'ono kwa REO mu galasi la silika ndi gawo limodzi lolepheretsa chifukwa izi zingapangitse kupanga magulu osowa padziko lapansi, makamaka ngati doping ndende ndi yaikulu kuposa kusungunuka kwa equilibrium, ndipo imafuna kuchitapo kanthu kuti athetse mapangidwe a magulu.
