Yttrium yog ib qho tshuaj lom neeg ua haujlwm, silvery- cov hlau dawb feem ntau tau los ntawm kev txo cov calciothermic ntawm yttrium fluoride. Nws oxidizes yooj yim nyob rau hauv huab cua, poob nws cov xim hlau luster. Hauv cov ntawv thov kev lag luam, yttrium tsis yog siv los ua hlau yttrium; ntau zaus, nws nkag mus rau hauv cov dej qis hauv ntiaj teb uas tsis tshua muaj cov khoom siv hauv cov khoom sib txuas xws li yttrium oxide (Y₂O₃).
Yttrium kuj yog thawj lub ntiaj teb tsis tshua muaj uas tau pom. Ua tsaug rau nws cov khoom zoo ntawm lub cev thiab tshuaj lom neeg, nws tau dhau los ua cov khoom siv tseem ceeb hauv kev tsim khoom thoob ntiaj teb, ntsiag to underpinning niaj hnub manufacturing.
Dab tsi tiag tiag thrust yttrium rau hauv lub ntiaj teb tsom teeb yog qhov siab -kawg sector qhov sib sib zog nqus dependence rau nws - thiab Tuam Tshoj txoj kev tswj ntawm qhov khoom.
Lub ntiaj teb tsis tshua muaj yttrium feem ntau yog muab faib rau hauv cov teb chaws xws li Tuam Tshoj, Russia, Tebchaws Meskas, thiab Australia, nrog rau 40% ntawm cov reserves concentrated hauv Suav teb. Niaj hnub no, Tuam Tshoj tsis tsuas yog tuav lub ntiaj teb no loj tshaj plaws lub ntiaj teb reserves, tab sis tseem ceeb tshaj, nws tswj ntau tshaj 90% ntawm lub ntiaj teb no tsis tshua muaj refining muaj peev xwm thiab sib cais.
Kev cuam tshuam los ntawm Tuam Tshoj lub ntiaj teb tsis tshua muaj kev tswj hwm, cov nqi yttrium oxide txawv teb chaws tau nce siab txij li xyoo 2025. Raws li Asian Hlau, tus nqi ntawm yttrium oxide tau nce los ntawm $ 7.9 / kg nyob rau lub Ib Hlis 2025 txog $ 441 / kg los ntawm lub Tsib Hlis 2026 - nce 55 npaug.
Peb qhov kev lag luam saum toj kawg nkaus hauv Nyij Pooj los ntawm kev siv yttrium oxide yog cov khoom siv hluav taws xob ceramics, phosphors thiab cov lus qhia, thiab kev lag luam semiconductor - tag nrho cov core pillar industries. Nrog yttrium oxide tus nqi skyrocketing, Japanese manufacturers ntsib cov nqi nce uas thaum kawg erode cov kev sib tw ntawm lawv cov khoom nyob rau hauv lub ntiaj teb no kev ua lag luam.
Txog tam sim no, tus nqi txawv teb chaws rau yttrium oxide tau nce 3.4 npaug piv rau thaum pib ntawm lub xyoo. Rau Japanese yttria-stabilized zirconia (YSZ) cov neeg tsim khoom, cov nqi tsim khoom tau spiraled tag nrho ntawm kev tswj, yuam lawv kom dhau lub siab los ntawm tus nqi nce siab.
Thaum cov khoom siv tseem ceeb ntawm cov khoom siv tseem ceeb raug txiav tawm, cov dej ntws hauv qab siab - qhov kawg kev tsim khoom tuaj yeem raug tshem tawm tag nrho.
Aerospace sector
Tshaj li nws siv hauv kev kho hniav kho hniav, YSZ cov ntaub ntawv ceramic - nrog lawv cov thermal conductivity tsawg, siab melting point, thiab zoo heev tshuaj stability - tau dhau los ua ib qho ntawm cov kev xaiv saum toj kawg nkaus rau txheej ceramic hauv thermal barrier coatings (TBCs). Tau 30 xyoo dhau los, YSZ tau ua haujlwm tsis txaus ntseeg ntawm TBCs, tau siv dav hauv cov tshuab ntawm cov dav hlau dav hlau siab tshaj xws li F-22, F-35, thiab J-20, nrog rau hauv kev lag luam aero cav los ntawm GE, Rolls-Royce, thiab Pratt & Whitney. Lub koom haum Aerospace Industries Association (AIA) ntawm Tebchaws Meskas hais tias yttrium yog qhov tseem ceeb rau lub ntiaj teb cov tshuab dav hlau tshaj plaws. Dak Hardwick, tus lwm thawj coj ntawm AIA rau kev ua haujlwm thoob ntiaj teb, tau qhia tias: "Peb cov saw hlau tam sim no vam khom ntau rau kev xa khoom los ntawm Tuam Tshoj - qhov kev cia siab uas ua rau tus nqi nce ntxiv thaum muaj kev tsis txaus."
Cov khoom siv semiconductor
Ntawm ntau pua tus kauj ruam hauv kev tsim cov chips, plasma etching yog ib qho kev phem tshaj plaws. Lub siab melting point thiab thermal stability ntawm Y₂O₃ pab kom nws muaj kev tiv thaiv zoo heev nyob rau lub sij hawm ntev hauv plasma etching ib puag ncig, ua rau nws yog ib qho ntawm cov khoom siv dav tshaj plaws rau kev tiv thaiv plasma etching. Qhov zoo tshaj plaws ntawm Y₂O₃ yog nws reacts maj mam nyob rau hauv fluorine-raws li plasmas, khaws cia qhov ruaj khov ntawm txheej txheej, uas ua rau nws muaj zog cia siab rau siv nyob rau hauv etching khoom rau 8-nti thiab loj wafers.
MLCC sector
Multilayer ceramic capacitors (MLCCs) feem ntau siv barium titanate (BaTiO₃) ua cov khoom siv dielectric. Txawm li cas los xij, BaTiO₃ raug kev txom nyem los ntawm qhov tsis zoo xws li kev kub ntxhov loj, kev poob siab dielectric, thiab tsis muaj zog tiv thaiv, ua rau nws yog qhov tseem ceeb rau dope cov khoom uas muaj cov lej ntawm lub ntiaj teb tsis tshua muaj oxides rau kev hloov kho lattice. Raws li kev txheeb xyuas los ntawm Tuam Tshoj Galaxy Securities, yttrium oxide yog cov khoom siv doping nrog kev noj ntau tshaj plaws hauv MLCC hmoov txheej txheej txheem, thaum dysprosium thiab terbium yog cov khoom siv tseem ceeb ntxiv rau kev tsim MLCCs siv hauv tsheb - qib thiab AI siab - qhov hluav taws xob scenarios. Tom qab Tuam Tshoj tau siv cov kev tswj hwm lub ntiaj teb tsis tshua muaj kev xa tawm, cov tuam txhab Nyij Pooj thiab Kaus Lim Qab Teb tau pom tias nws nyuaj dua los yuav cov khoom siv hauv ntiaj teb tsawg.
Optics thiab lasers
Tam sim no, yttrium yog siv dav hauv cov ntaub ntawv crystalline, xws li yttrium aluminium garnet (Y₃Al₅O₁₂, YAG), yttrium vanadate (YVO₄) ib leeg muaju, thiab yttrium silicate (YSiO) crystals. Ntawm lawv, YAG - cov khoom siv hluavtaws, tsis muaj xim, pob tshab siv lead ua nrog lub siab hardness, siab melting point, thiab ruaj khov lub cev thiab tshuaj lom neeg cov khoom - tau dhau los ua cov khoom siv laser siv lead ua ntau tshaj plaws niaj hnub no.
Tshaj li kev siv tub rog, yttrium hlau garnet (YIG) tuaj yeem siv los tsim cov khoom siv tseem ceeb hauv lub terahertz zaus band, pab daws teeb meem ntawm kev cuam tshuam thiab ib qho - txoj kev xa mus rau 6G siab - zaus cov cim. Txawm hais tias tsis yog cov khoom tseem ceeb, lawv tseem tuaj yeem cuam tshuam kev ua haujlwm ntawm 6G tes hauj lwm.
Yog vim li cas yttrium yog indispensable?
Raws li cov tuam txhab Nyij Pooj uas siv yttrium{0}}raws li cov ntaub ntawv: "Nws nyuaj heev rau kev hloov nrog lwm cov ntaub ntawv, thiab tseem tsis tau muaj qhov txawv txav mus rau kev txo cov khoom." Cov ntaub ntawv ntxiv qhia tau hais tias kwv yees li 65% ntawm yttrium- muaj cov khoom siv lossis yttrium oxide cov khoom uas tuaj los ntawm Tebchaws Meskas yog tsim nyob rau hauv Nyiv.
Rov qab mus rau lo lus nug tseem ceeb: Puas yog yttrium indispensable rau high -end manufacturing?
Technically irreplaceable. Hauv kev siv ceramics siab heev, yttrium oxide plays ntau lub luag haujlwm ua "stabilizer," "dopant," thiab "sintering aid." Qhov no yog ib feem ntawm cov khoom tshwj xeeb ntawm yttrium oxide raws li lub ntiaj teb tsis tshua muaj hnyav, thiab ib nrab vim tias nws yog tus nqi tshaj plaws - cov khoom siv hnyav hnyav hauv ntiaj teb. Tsis tas li ntawd, ntxiv cov ntsiab lus hnyav hauv ntiaj teb rau cov hmoov ceramic yog txhais tau tias yuav muab cov haujlwm tshwj xeeb rau cov ceramics.
Kev tswj tsis pub dhau ntawm cov khoom siv. Lub yttrium tsis tshua muaj lub ntiaj teb kev lag luam saw tau tsim ib qho tshwj xeeb "hourglass" qauv: cov peev txheej sab saud yog thaj chaw muaj ntau haiv neeg, thiab cov ntawv sau hauv qab yog qhov dav dav, tab sis qhov tseem ceeb "kev ua haujlwm" kauj ruam nyob rau hauv nruab nrab yog nruj nruj nyob rau hauv ib qho chaw. Qhov no sawv cev rau cov qauv, cov khoom siv hluav taws xob muaj zog.
Qhov tob ntawm cov tshuaj tiv thaiv kab mob. Yttrium tsis yog cov hlau zoo tib yam. Nws yog ib qho tseem ceeb ntawm cov khoom siv tseem ceeb uas tau muab tso rau hauv qhov siab tshaj plaws - kawg kev lag luam scenarios - semiconductor manufacturing txheej txheem, siab -kub cav txheej, aerospace Cheebtsam, electronics, thiab siab - kev ua tau zoo ntawm industrial applications.