Qhov sib txawv tseem ceeb ntawm Neodymium hlau nplaum thiab cov hlau nplaum tsis tu ncua yog tias cov hlau nplaum neodymium muaj neodymium, hlau, thiab boron ua cov tshuaj tseem ceeb thaum cov hlau nplaum tsis tu ncua muaj hlau ua cov tshuaj tseem ceeb.
Neodymium hlau nplaum yog ib daim ntawv ntawm cov hlau nplaum muaj zog ua los ntawm lub ntiaj teb tsis tshua muaj xws li neodymium. Nws yog ib qho hlau nplaum ntawm ntau cov hlau xws li hlau, boron, thiab lwm yam. Cov hlau nplaum tsis tu ncua, ntawm qhov tod tes, yog cov hlau nplaum ceramic uas muaj ferrite ua cov ntsiab lus tseem ceeb. Nws muaj feem ntau ntawm cov hlau (III) oxide nrog rau lwm cov hlau xws li barium. Cov hlau nplaum no nrov vim yog tus nqi qis thiab lub zog siab.
Neodymium Magnet yog dab tsi?
Neodymium hlau nplaum yog ib daim ntawv ntawm cov hlau nplaum uas tsis tshua muaj hauv ntiaj teb uas muaj neodymium, hlau thiab boron. Nws yog cov hlau nplaum ruaj khov. Nws muaj ib qho alloy ntawm cov hlau hais nyob rau hauv daim ntawv ntawm Nd
2Fe14B tetragonal crystalline qauv. Cov hlau nplaum no yog cov khoom lag luam qib hlau nplaum uas muaj zog tshaj plaws uas muaj tam sim no. Yog li, cov hlau nplaum no tuaj yeem hloov tau ntau hom hlau nplaum hauv cov khoom siv niaj hnub xws li lub cev muaj zog hauv cov cuab yeej cordless.
Neodymium yog cov khoom siv ferromagnetic; yog li ntawd, peb tuaj yeem tsim nws los ua cov hlau nplaum. Txawm li cas los xij, Curie kub (cov khoom siv uas cov hlau nplaum poob nws cov hlau nplaum) ntawm cov khoom no tsawg heev. Yog li ntawd, nyob rau hauv nws daim ntawv ntshiab, nws qhia tau hais tias magnetism nyob rau hauv uas tsis tshua muaj kub. Tab sis yog tias peb ua cov hlau nplaum ntawm neodymium nrog qee cov hlau hloov pauv xws li hlau, peb tuaj yeem txhim kho cov hlau nplaum ntawm cov khoom siv no. Daim ntawv txhim kho no yog qhov peb hu ua "neodymium hlau nplaum".
Daim duab 01: Neodymium Magnet Balls
Muaj ntau yam uas txiav txim siab lub zog ntawm cov hlau nplaum no. Qhov tseem ceeb tshaj plaws yog tetragonal crystalline qauv ntawm no alloy. Ntxiv mus, ib lub neodymium atom kuj muaj lub sij hawm lar magnetic dipole vim muaj 4 unpaired electrons. Ntxiv rau qhov ntawd, cov hlau nplaum no muaj qhov tshwj xeeb siab remanence (lub zog ntawm cov magnetic teb), coercivity (cov khoom tsis kam ua demagnetized) thiab cov khoom siv hluav taws xob (qhov ntom ntawm lub zog sib nqus). Tab sis Curie kub (cov khoom siv uas cov hlau nplaum poob nws cov hlau nplaum) yog qhov sib piv qis.
Npaum Magnet yog dab tsi?
Cov hlau nplaum tsis tu ncua yog cov hlau nplaum uas peb siv rau lub hom phiaj tsis tu ncua. Feem ntau, peb siv cov hlau nplaum ceramic (los yog ferrite) raws li cov hlau nplaum tsis tu ncua. Cov hlau nplaum no muaj ferrite ua cov khoom tseem ceeb. Ferrite yog cov khoom siv ceramic. Nws feem ntau muaj hlau (III) oxide. Peb muab cov khoom sib xyaw no nrog qee cov hlau xws li barium, manganese, nickel thiab zinc. Cov khoom no yog ferromagnetic thiab hluav taws xob uas tsis yog-conductive.
Daim duab 02: Ib pawg ntawm Ceramic Magnets
Ntxiv rau qhov ntawd, cov hlau nplaum no muaj qhov tsis zoo (lub zog ntawm cov hlau nplaum), coercivity (khoom siv los ua demagnetized) piv. Tab sis muaj ob hom ferrite hlau nplaum li nyuaj ferrites thiab mos ferrites raws li kev coercivity (siab thiab qis feem). Sib nrug los ntawm qhov ntawd, cov khoom siv hluav taws xob (qhov ntom ntom ntawm lub zog sib nqus) kuj tsawg heev. Tab sis Curie kub (cov khoom siv uas cov hlau nplaum poob nws cov hlau nplaum) yog qhov sib piv siab.
Qhov txawv ntawm Neodymium hlau nplaum thiab cov hlau nplaum tsis tu ncua yog dab tsi?
Neodymium hlau nplaum yog ib daim ntawv ntawm cov hlau nplaum tsis tshua muaj hauv ntiaj teb uas muaj neodymium, hlau, thiab boron whereas cov hlau nplaum niaj hnub yog cov hlau nplaum, feem ntau yog cov hlau nplaum ceramic (los yog ferrite) hlau nplaum uas feem ntau muaj hlau (III) oxide, uas peb. siv rau lub hom phiaj tsis tu ncua. Yog li ntawd, qhov sib txawv tseem ceeb ntawm neodymium hlau nplaum thiab cov hlau nplaum tsis tu ncua yog cov ntsiab lus tseem ceeb uas cov hlau nplaum no yog tsim los ntawm. Lwm qhov sib txawv loj ntawm neodymium hlau nplaum thiab cov hlau nplaum tsis tu ncua yog lawv cov khoom vim yog cov khoom siv saum toj no. Neodymium hlau nplaum muaj qhov tshwj xeeb siab remanence, coercivity thiab zog khoom thaum cov hlau nplaum tsis tu ncua muaj ib tug tsawg remanence thiab zog khoom, piv txwv li. Tab sis muaj ob hom ferrite hlau nplaum li nyuaj ferrites thiab mos ferrites raws li kev coercivity (siab thiab qis feem). Ntxiv mus, Curie kub rau neodymium hlau nplaum yog qis dua li cov hlau nplaum ib txwm.
Cov hauv qab no qhia txog qhov sib txawv ntawm cov hlau nplaum neodymium thiab cov hlau nplaum tsis tu ncua hauv daim ntawv teev npe rau kev siv ceev.
Summary – Neodymium Magnet vs Regular Magnet
Cov hlau nplaum yog cov khoom siv uas tuaj yeem nyiam lwm yam khoom siv. Muaj ntau hom hlau nplaum; neodymium thiab cov hlau nplaum tsis tu ncua yog ob daim ntawv zoo li no. Qhov sib txawv tseem ceeb ntawm Neodymium hlau nplaum thiab cov hlau nplaum tsis tu ncua yog cov hlau nplaum neodymium muaj neodymium, hlau, thiab boron ua cov tshuaj tseem ceeb thaum cov hlau nplaum tsis tu ncua muaj hlau ua cov tshuaj tseem ceeb.
