Mo-La alloy daim ntawv
Lanthanum muaj ntau yam kev siv tseem ceeb, suav nrog:
1. Catalyst: Lanthanum compounds yog siv los ua catalysts hauv kev lag luam roj av refining thiab tsim cov khoom siv hluav taws xob hydrocarbon.
2. Cov iav thiab ceramics: Lanthanum oxide yog siv los tsim cov iav tsom iav thiab ceramics zoo.
3. Cov roj teeb: Lanthanum yog siv nyob rau hauv nickel hlau hydride (NiMH) roj teeb, feem ntau siv nyob rau hauv hybrid thiab hluav taws xob tsheb.
4. Carbon teeb pom kev zoo: Lanthanum yog siv nyob rau hauv cov pa roj carbon arc teeb pom kev zoo thiab hauv kev lag luam zaj duab xis rau studio teeb pom kev zoo thiab projector teeb.
5. Magnets: Lanthanum yog siv los tsim cov hlau nplaum ruaj khov, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov xws li lub mloog pob ntseg thiab hais lus.
6. Alloys: Lanthanum yog siv los ua cov khoom siv alloying hauv ntau cov hlau los txhim kho lawv cov khoom, xws li hauv kev tsim cov hlau ductile.
Cov no tsuas yog qee qhov piv txwv ntawm ntau daim ntawv thov ntawm lanthanum hauv ntau qhov kev lag luam.
Lanthanum muaj ntau yam khoom tshwj xeeb uas ua rau nws tshwj xeeb thiab muaj txiaj ntsig rau ntau yam kev lag luam thiab kev siv thev naus laus zis:
1. Ductility thiab Malleability: Lanthanum yog ib qho mos mos, malleable thiab malleable hlau, ua rau nws haum rau molding thiab sib sau ua ntau yam khoom thiab cov khoom.
2. Catalyst kev ua tau zoo: Lanthanum tebchaw nthuav tawm cov khoom catalytic zoo heev, ua rau lawv muaj txiaj ntsig zoo hauv cov txheej txheem xws li roj av refining thiab hluavtaws hydrocarbon roj ntau lawm.
3. Cov khoom siv kho qhov muag: Vim tias lanthanum tuaj yeem txhim kho qhov refractive index thiab cov khoom kho qhov muag ntawm iav, nws yog siv los tsim cov iav kho qhov muag zoo thiab lo ntsiab muag.
4. Magnetism: Lanthanum yog siv los tsim cov hlau nplaum uas muaj zog ruaj khov, pab lawv siv hauv kev siv xws li lub mloog pob ntseg thiab hais lus.
5. Roj teeb tshuab: Lanthanum yog siv nyob rau hauv nickel hlau hydride (NiMH) roj teeb, feem ntau siv nyob rau hauv hybrid thiab hluav taws xob tsheb, los pab txhawb kev ruaj ntseg zog cia.
Cov khoom tshwj xeeb no ua rau lanthanum muaj ntau yam thiab muaj txiaj ntsig hauv kev lag luam xws li hluav taws xob thiab lub zog cia rau optics thiab catalysis.
Lanthanum hlau nws tus kheej tsis suav hais tias yog qhov muaj zog heev lossis corrosive nyob rau hauv ib txwm muaj. Tsis hnov mob nrog dej lossis oxygen ntawm chav tsev kub. Txawm li cas los xij, zoo li ntau lwm yam hlau, lanthanum tuaj yeem ua rau cov kua qaub thiab lwm yam corrosive nyob rau hauv qee yam mob. Lanthanum compounds, ntawm qhov tod tes, tuaj yeem nthuav tawm cov khoom sib txawv ntawm cov tshuaj lom neeg thiab tuaj yeem ua rau muaj kev cuam tshuam thiab corrosive mus rau qhov sib txawv, nyob ntawm seb lawv muaj pes tsawg leeg thiab ib puag ncig uas lawv siv. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau xav txog cov qauv tshwj xeeb thiab ib puag ncig uas siv lanthanum thaum ntsuas nws qhov muaj peev xwm corrosion.
Lanthanum hlau nws tus kheej tsis yog flammable nyob rau hauv ib txwm tej yam kev mob. Nws yuav tsis spontaneously ignite nyob rau hauv cov huab cua thiab tsis hnov mob nrog dej nyob rau hauv chav tsev kub. Txawm li cas los xij, thaum lanthanum raug muab faib ua hmoov zoo los yog hmoov, nws tuaj yeem ua rau hluav taws kub yog tias raug hluav taws kub. Tsis tas li ntawd, lanthanum tebchaw yuav muaj qhov sib txawv ntawm qhov sib txawv nyob ntawm lawv cov tshuaj muaj pes tsawg leeg.
Yog li ntawd, thaum lanthanum hlau tsis yog feem ntau suav hais tias yog flammable, yuav tsum tau ceev faj tsim nyog thaum tuav lanthanum nyob rau hauv txhua daim ntawv los tiv thaiv tej zaum yuav raug hluav taws.
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