Domains yog thaj tsam ntawm homogeneous magnetization sib cais los ntawm cov phab ntsa, qhov chaw uas qhov kev taw qhia ntawm lub sijhawm atomic hloov pauv sai heev (Tshooj II. C). Lub vector magnetizations ntawm lub domains sum rau xoom hauv lub xeev demagnetized.
Thaum cov khoom siv ferromagnetic nyob rau hauv lub xeev unmagnetized lub domains yog?
Domains yog me me thiab randomly oriented nyob rau hauv ib yam khoom uas tsis muaj hlau nplaum ferromagnetic. Nyob rau hauv teb rau sab nraud magnetic teb, cov thawj yuav loj hlob mus rau millimeter loj, aligning lawv tus kheej raws li qhia nyob rau hauv daim duab 2(b).
Cov ntaub ntawv ferromagnetic puas tuaj yeem demagnetized?
Cov ntaub ntawv ferromagnetic tuaj yeem demagnetized los ntawm peb txoj kev hauv qab no: Kub tshaj Curie kub (Curie kub yog alloy nyob ntawm kev lag luam steels yog li 500 ° C txog 800 ° C thiab pib hloov dua siab tshiab los ntawm Ferromagnetism rau Paramagnetism).
Dab tsi tshwm sim rau lub npe hauv cov khoom siv ferromagnetic?
Yog li kev siv cov hlau nplaum sib nqus rau cov khoom siv ferromagnetic feem ntau ua rau cov phab ntsa domain txav kom nce qhov loj ntawm cov lus dag feem ntau sib npaug rau thaj chaw, ntawm tus nqi txo qhov loj ntawm cov thawj. tawm tsam thaj teb Qhov no yog qhov tshwm sim thaum cov ntaub ntawv ferromagnetic yog "magnetized ".
Yuav ua li cas rau cov thawj hauv cov khoom siv ferromagnetic thaum cov khoom tso rau hauv ib qho chaw sib nqus sab nraud?
Thaum ib daim ntawm cov khoom ferromagnetic muab tso rau hauv ib qho chaw sib nqus sab nraud, ob yam tshwm sim. Cov kev sib tw hauv txhua qhov kev hloov pauv kom lub sijhawm sib nqus ntawm cov hluav taws xob ua kom zoo dua nrog cov kev taw qhia ntawm thaj chaw.
