Neodymium yog ib qho ntawm feem ntau nquag tsis tshua muaj feem xyuam

Xyoo 1839, Swedish cgmosander nrhiav kev sib xyaw ntawm lanthhanum (LAN) thiab preodymium (nǚ).

Tom qab ntawd, cov kws khomob thoob ntiaj teb tau them nyiaj tshwj xeeb kom cais cov ntsiab lus tshiab los ntawm kev pom tsis tshua muaj txiaj ntsig hauv ntiaj teb.

Xyoo 1885, Auddian, nrhiav tau cov tswv yim thiab neodymium los ntawm kev sib xyaw ntawm cov duab ntxas thiab neodymium li "cov ntsiab lus tshiab". Ib qho ntawm lawv tau muaj npe hu ua Neodymium, uas yog tom qab yooj yim rau neodymium. Lub cim ND yog neodymium.

Neodymium, preasodymium, gadolinium (Gadolinium (Gadolinium (GUARIUM (Shan) Vim tias lawv nrhiav pom, tsis muaj dab tsi ntxiv lawm. Nws yog lawv qhov kev tshawb pom uas qhib lub qhov rooj ntawm lub ntiaj teb ntawm kev tsis tshua muaj ntiaj teb thiab yog theem peb ntawm kev tshawb pom ntawm lub ntiaj teb tsis tshua muaj neeg pom. Tab sis qhov no tsuas yog ib nrab ntawm kev ua haujlwm nyob rau theem peb.Txhua, lub rooj loog ntawm cerium yuav tsum tau qhib, thiab ib nrab ntawm yttrium ua tiav.

Neodymium, chemical cim ND, silvery dawb hlau, yog ib qho ntawm feem ntau nquag tsis tshua muaj feem ntawm 1024 ° C, ntom ntawm 7.004 g /㎝, thiab paramagnetism.

MAIN siv:

Neodymium tau dhau los ua qhov chaw kub hauv kev ua lag luam tau ntau xyoo vim yog nws txoj haujlwm tshwj xeeb hauv thaj teb tsis tshua muaj neeg tsawg. Cov neeg siv khoom loj tshaj plaws ntawm neodymium hlau yog ndfeb cov khoom lag luam tas mus li. Kev Tawm Tsam ntawm NDFERA cov hlau nplaum tau txhaj qhov tseem ceeb tshiab rau hauv lub ntiaj teb muaj kev kub ntxhov siab. NdFeB hlau nplaum yog hu ua "tus huab tais ntawm cov hlau nplaum tas mus li" vim hais tias ntawm nws lub zog sib nqus khoom.Nws tau siv dav hauv cov khoom siv hluav taws xob, tshuab ua tshuab thiab lwm yam kev lag luam rau nws ua tau zoo heev.

Neodymium kuj tseem siv nyob rau hauv cov ntaub ntawv tsis yog ferrous. Ntxiv 1.5-2.5% neodymium rau magnesium lossis txhuas alloy tuaj yeem txhim kho qhov kub thiab txias thiab yog siv dav siv raws li cov ntaub ntawv aerospace.

Tsis tas li ntawd, neodymium-doped yttrium aluminium GARNET cov nqaj luv, uas yog dav siv nyob rau hauv vuam thiab txiav cov ntaub ntawv nyias nrog qis dua 10 hli hauv kev lag luam.

Hauv kev kho mob, ND: YAG laser yog siv los tshem tawm kev phais lossis cov tshuaj tua kab mob hloov dua tshiab es tsis txhob siv lub taub hau. Neodymium kuj tseem siv rau xim iav thiab cov khoom siv tej hub thiab ua cov khoom ntxiv rau cov khoom lag luam roj hmab.

Nrog rau kev txhim kho kev tshawb fawb thiab thev naus laus zis thiab kev nthuav dav thiab txuas ntxiv ntawm lub ntiaj teb kev tshawb fawb tsis tshua muaj thiab thev naus laus zis yuav muaj qhov chaw dav dav.

Neodymium (nd) yog lub ntiaj teb tsis tshua muaj cua. Daj ntseg daj, yooj yim oxidized nyob rau hauv huab cua, siv los ua alloy thiab optical iav.

Nrog rau lub hnub yug ntawm preasodymium, neodymium tuaj rau hauv ua. Lub sijhawm tuaj txog ntawm cov neeg neodymium ua kom lub teb chaws tsis tshua muaj, ua lub luag haujlwm tseem ceeb hauv kev lag luam hauv ntiaj teb tsis tshua muaj.

Daim ntawv thov ntawm neodymium: nws yog siv los ua ceramics, lub ntsej muag paj yeeb, tshuab ruby ​​nyob rau hauv laser thiab tshwj xeeb lub iav muaj peev xwm ntawm filtering infrared rays. Siv ua ke nrog praseodymium ua rau gggles rau iav beanders. Micch hlau siv hauv steelmaking kuj muaj 18% neodymium.

Neodymium oxide nd2 o3; Lub cev hnyav molecular yog 336.40; Lavender Cov hmoov nplej, yooj yim kom muaj kev cuam tshuam nrog Damp, nqus cov pa roj carbon dioxide hauv huab cua, insoluble hauv dej, soluble hauv inorganic acid. Tus txheeb ze ceev yog 7.24. Lub ntsiab lus melting yog kwv yees li 1900 ℃, thiab qhov siab tseem ceeb ntawm cov neeg neodence muaj feem tau los ntawm cov cua sov.

Siv: Siv rau kev ua cov ntaub ntawv hlau nplaum ruaj khov, cov xim rau iav thiab ceramics thiab cov ntaub ntawv laser.

Nanometer Neodermium oxide kuj siv rau xim iav thiab cov khoom siv sib xyaw ua ke, cov khoom lag luam roj hmab thiab cov roj hmab.

Pr-nd hlau; Cov mis nyuj molecular yog PR-ND; Cov Khoom: Cov nyiaj-grey uas yog xim hlau thaiv, nws yog xim hlau luster, yooj yim oxidized hauv huab cua. Lub Hom Phiaj: Feem ntau yog siv raws li cov khoom siv hlau nplaum tas mus li.

Kev tiv thaiv kev tiv thaiv muaj zog rau lub qhov muag thiab lub plab zom mov, thiab nqus kom muaj kev nqus tau rau cov tawv nqaij ntsws thiab lub siab puas.

Yam khoom:

Kev ua rau kom muaj qhov muag, tawv nqaij, qog ua pa thiab ua pa ua pa.

Kev daws:

1. Inhalation: Tawm ntawm lub xaib mus rau huab cua ntshiab. Yog tias ua pa nyuaj, muab cov pa oxygen. Nrhiav kev kho mob.

2. Kev Tiv Thaiv Qhov muag: Nqa daim tawv muag thiab yaug nrog dej ntws lossis dej qab ntsev. Nrhiav kev kho mob.

3. Kev tiv thaiv tawv nqaij: hle cov khaub ncaws tsis huv thiab yaug nrog dej ntws.

4. Noj: Haus dej sov kom ntau kom tsis txhob ntuav. Nrhiav kev kho mob.

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