Ukusebenzisa i-Rare Earth oxides ukwenza iiglasi zeFluorescent
Ukusebenzisa i-Rare Earth oxides ukwenza iiglasi zeFluorescent
Ukusetyenziswa kwezinto ezinqabileyo zomhlaba Imizi-mveliso esele imisiwe, enjengezinto zokucoca, ukwenza iiglasi, izibane, nesinyithi, kudala zisebenzisa izinto ezinqabileyo zomhlaba.Loo mizi mveliso, xa idityanisiwe, ibalelwa kwi-59% yosetyenziso lulonke ehlabathini.Ngoku iindawo ezintsha, ezikhula kakhulu, ezinje ngealloyi zebhetri, iiseramikhi, kunye neemagnethi ezisisigxina, nazo zisebenzisa izinto ezinqabileyo zomhlaba, ezibalela enye i-41%. Izinto ezinqabileyo zomhlaba kwiMveliso yeglasi Kwinkalo yemveliso yeglasi, iioksidi zomhlaba ezinqabileyo sele zihlolisisiwe.Ngokukodwa ngakumbi, ukuba iipropathi zeglasi zinokutshintsha njani ngokudityaniswa kwezi khompawundi.Usosayensi waseJamani ogama linguDrossbach waqala lo msebenzi ngeminyaka yoo-1800 xa wayenelungelo elilodwa lomenzi wechiza kwaye esenza umxube weeoksidi zomhlaba ezinqabileyo zokususa iglasi. Nangona ikwimo ekrwada kunye nezinye iioksidi zomhlaba ezinqabileyo, oku yayisisenzo sokuqala sorhwebo secerium.I-Cerium yaboniswa ukuba igqwesile kwi-ultraviolet yokufunxa ngaphandle kokunika umbala ngo-1912 nguCrookes waseNgilani.Oku kuyenza ibe luncedo kakhulu kwiindondo zokukhusela. I-Erbium, ytterbium, kunye neodymium zezona zisetyenziswa kakhulu iiREE kwiglasi.Unxibelelwano lwamehlo lusebenzisa i-erbium-doped silica fiber ngokubanzi;ukusetyenzwa kwemathiriyeli yobunjineli kusebenzisa i-ytterbium-doped silica fiber, kunye ne-glass lasers ezisetyenziselwa ukuvalelwa kwe-inertial fusion zisebenzisa i-neodymium-doped.Ukukwazi ukutshintsha iimpawu ze-fluorescent zeglasi yenye yezona zinto zibalulekileyo zokusetyenziswa kwe-REO kwiglasi. IiPropati zeFluorescent ezivela kwi-Rare Earth oxides Eyodwa ngendlela enokuthi ibonakale iqhelekile phantsi kokukhanya okubonakalayo kwaye inokukhupha imibala ecacileyo xa ichulumancile ngamaza athile obude, iglasi ye-fluorescent inezicelo ezininzi ezivela kumfanekiso wezonyango kunye nophando lwebhayoloji, ukuvavanya imithombo yeendaba, umkhondo kunye ne-enamel yeglasi yobugcisa. I-fluorescence inokuqhubeka isebenzisa ii-REO ezifakwe ngokuthe ngqo kwi-matrix yeglasi ngexesha lokunyibilika.Ezinye izinto zeglasi ezine-fluorescent coating kuphela zihlala zisilela. Ngexesha lokuvelisa, ukuqaliswa kwee-ion zomhlaba ezinqabileyo kwisakhiwo kubangela i-optical glass fluorescence.Ii-electron ze-REE ziphakanyiswe kwimo echulumancisayo xa umthombo wamandla ongenayo usetyenziselwa ukuvuyisa ezi ionni ezisebenzayo ngokuthe ngqo.Ukukhutshwa kokukhanya kobude obude kunye namandla asezantsi kubuyisela imeko echulumancisayo kwimeko ephantsi. Kwiinkqubo zamashishini, oku kuluncedo ngakumbi njengoko ivumela iimicrospheres zeglasi ezingaphiliyo ukuba zifakwe kwibhetshi ukuchonga umenzi kunye nenombolo yeqashiso kwiintlobo ezininzi zeemveliso. Ukuthuthwa kwemveliso akuchatshazelwa yi-microspheres, kodwa umbala othile wokukhanya uveliswa xa ukukhanya kwe-ultraviolet kukhanya kwi-batch, evumela ukuba kugqitywe ukuvela okuchanekileyo kwezinto eziphathekayo.Oku kunokwenzeka ngazo zonke iintlobo zemathiriyeli, kubandakanywa umgubo, iiplastiki, amaphepha kunye nolwelo. Uluhlu olukhulu lubonelelwa kwii-microspheres ngokuguqula inani leeparamitha, njengomlinganiselo ochanekileyo we-REO eyahlukeneyo, ubungakanani besuntswana, ukusabalalisa ubungakanani besuntswana, ukubunjwa kweekhemikhali, iipropathi ze-fluorescent, umbala, iipropathi zamagnetic, kunye ne-radioactivity. Kwakhona kunenzuzo ukuvelisa ii-microspheres ezikhanyayo ukusuka kwiglasi njengoko zinokuthi zifakwe kwii-degrees ezahlukeneyo kunye ne-REO's, ukumelana namaqondo obushushu aphezulu, uxinzelelo oluphezulu, kunye ne-inert yekhemikhali.Xa kuthelekiswa neepolymers, ziphezulu kuzo zonke ezi ndawo, ezivumela ukuba zisetyenziswe kwiindawo eziphantsi kakhulu kwiimveliso. Ukunyibilika okuphantsi ngokwentelekiso kwe-REO kwiglasi ye-silica ngomnye umda onokubakho njengoko oku kunokukhokelela ekwakhiweni kwamaqela omhlaba anqabileyo, ngakumbi ukuba ugxininiso lwe-doping lukhulu kunonyibiliko olulinganayo, kwaye lufuna inyathelo elikhethekileyo lokucinezela ukubunjwa kwamaqela.
Ixesha lokuposa: Nov-29-2021