Qhov chaw dysprosium: tau ua rau hauv lub teeb ci los txhawb cov cog kev loj hlob

Dysprosium, Element 66 ntawm lub rooj ntu

Dysprosium

Jia Yi ntawm Han dynasty sau hauv "ntawm kaum qhov kev ua txhaum ntawm Qin" uas "peb yuav tsum sau txhua tus tub rog hauv ntiaj teb, sib sau ua ke hauv xianyang, thiab muag lawv". Ntawm no, 'dysprosium'Yog hais txog qhov taw tes xaus ntawm ib tug xub. Xyoo 1842, tom qab Mossander sib cais thiab tab tom ua haujlwm hauv YTTRium lub ntiaj teb, ntau tus kws txhojists txiav txim siab los ntawm kev txheeb xyuas lub ntiaj teb hauv yttrium lub ntiaj teb. Xya lub xyoos tom qab, Fabkis Rand sortated Holmium ntiaj teb, thaum lwm qhov kawg pom tias yog lub caij tshiab, uas yog dysprosium.

Dysprosium raws li cov ntaub ntawv tuaj yeem raug xaj tuaj yeem thaiv cov hlau nplaum ntawm cov kub, thiab qhov kub no yog qhov ntsuas kub heev uas tau ua qhov kev ua tau zoo no. Ib qho feem pua ​​ntawm dysprosium yuav ntxiv rau ND-FE-B TANE cov hlau nplaum. Tsuas yog kwv yees li 2% ~ 3% tuaj yeem nce cov hlauent hauv cov hlau nplaum tas mus li, uas yog qhov tseem ceeb ntxiv rau hauv ND-B Hlau nplaum. Txawm tias ib co neodymium hlau boron cov hlau nplaum siv dysprosium los hloov ib feem ntawm neodymium los txhim kho lub tshav kub ua rau cov hlau nplaum. Nrog dysprosium neodymium hlau boron cov hlau nplaum, lawv tuaj yeem muaj cov khoom lag luam siab tiv taus hluav taws xob tsheb tsav tsheb tsav tsheb.

DysprosiumthiabterbiumYog ib khub zoo, thiab terbium dysprosium hlau tsim muaj cov hlauetostrict tseem ceeb tshaj plaws thiab chav siab tshaj plaws ntawm chav kub mageffictriction coeffictioncas coeffictriction coeffictioncas coeffictriction coeffictioncas coeffiction Siv qee cov paramagnetism dysprosium ntsev muaju, cov kws tshawb fawb tau ua lub tub yees nrog rwb thaiv tsev kub thiab cov demagnetization kub.

Lub hauv paus chiv keeb ntawm kev sib nqus tshuab thev naus laus zis tuaj yeem taug qab mus rau kev siv cov kab xev hlau nyob rau xyoo 1875. Tam sim no cov ntaubntawv povthawj siv kho tshiab Dysprosium muaj cov ntaub ntawv ntau thiab nyeem rhiab.

Lub teeb dysprosium teeb rau lub teeb pom kev zoo yog npaj ua ke nrog dysprosium thiabHolmiumCov. Dysprosium teeb txawb yog kev siv roj tawm hauv lub teeb, tsis zoo li lub teeb incandescent zoo ib yam uas emit teeb los ntawm tungsten xaim. Thaum pom lub teeb, lawv kuj tsim kom muaj cua sov. Kwv yees li 70% ntawm lub zog hluav taws xob hloov pauv mus rau hauv lub zog thermal. Qhov ntev dua siv sijhawm, qhov ntsuas kub siab dua, thiab qhov yooj yim dua lub tshuab tungsten. Cov teeb dysprosium tshwm sim los ntawm hluav taws xob ntawm cov roj hauv lub zog tsis muaj zog, uas yog lub zog hluav taws xob tuaj yeem hloov pauv rau hauv lub zog hluav taws xob, uas yog ntau dua, thiab muaj lub zog ntev dua. Nyob rau hauv tib lub zog hluav taws xob, lawv tuaj yeem tsim peb zaug lub ci ci ntawm incandescent teeb. Dysprosium teeb yog ib hom ntawm cov hlau-halide teeb, uas tau muaj nrog dysprosium (III) iodide, mercury, thiab tuaj yeem emcury, thiab tuaj yeem tawm nws cov cim tuab. Reflective sunight dysprosium teeb muaj ib txheej muaj kev cuam tshuam. Nws tau muaj qhov hluav taws xob ntau rau kev siv hluav taws xob hauv qhov chaw dav dav los ntawm cov xim xiav lub teeb ci rau lub txiv kab ntxwv liab. Nws yog qhov teeb pom kev zoo tshaj plaws rau kev sim ua liaj ua teb, cog qoob loo, thiab cog kev loj hlob nrawm. Nws tseem hu ua biological nyhuv teeb, uas haum rau ntau lub thawv huab cua zoo, cov khoom siv roj ntsha ua ntoo, cov tsev ntsuab, thiab lwm lub sijhawm. Nws tuaj yeem ua rau cov nroj tsuag muaj kev loj dua.

Cov khoom siv doprosium doped luminescent tuaj yeem siv raws li cov phosphor no los tsim cov phosphor extivators.

QQ 截图 20230703111850

Dysprosium muaj lub peev xwm los ntes neutrons thiab muaj ib qho loj neutron catch

 


Lub Sijhawm Post: Jul-03-2023