Yuav ua li cas cais ob leeg muaj zog hlau nplaum ua ke?
Rau tag nrho cov khoom sib nqus, nws tsis yog sib nqus ntawm kev kub. Feem ntau, cov khoom siv sib nqus tau muaj qhov kub nyhiab Tc saum toj kawg nkaus uas cov kev sib piv ntawm atomic magnetic moments yog chaotic thiab disordered vim lub cua sov khaus ntawm qhov atoms thaum muaj kev kub. Hauv qab no kub, lub sij hawm atomic magnetic lub sij hawm ua ke, uas ua rau spontaneous magnetization, thiab cov khoom ua ferromagnetic.
Nrog rau qhov no, ntau cov ntsiab lus tiv thaiv tau tsim. Piv txwv li, nplej cooker peb siv siv sijhawm ntawm Curie cov khoom ntawm cov khoom sib nqus. Hauv nruab nrab ntawm lub qab nplej cooker yog ib qho hlau nplaum thiab ib yam khoom sib nqus nrog Curie taw tes ntawm 105 degrees. Thaum cov dej hauv lub lauj kaub qhuav, qhov kub ntawm cov zaub mov yuav nce ntawm 100 degrees. Thaum twg qhov kub ncav txog 105 degrees, tus hlau nplaum poob nws lub xuas hluav taws xob vim kev ploj ntawm cov khoom sib nqus ntawm cov khoom sib nqus nqus ntawm cov hlau nplaum. Nyob rau lub sijhawm no, lub caij nplooj ntoos hlav ntawm cov hlau nplaum thiab cov khoom sib nqus sib lawv liag, thiab lub hwj huam hloov qhov teeb meem tawm. Qhib thiab nres cua sov.
Curie kub yog hais txog qhov kub ntawm qhov khoom uas hloov tau ntawm lub cev ferromagnetic thiab lub cev ntawm lub cev. Thaum lub ntsuas kub qis tshaj Curie qhov kub thiab txias, cov khoom yuav ua rau lub cev ferromagnetic, thiab lub sib nqus teb nrog cov khoom yuav nyuaj. Thaum lub ntsuas kub siab tshaj Curie qhov kub thiab txias, cov khoom ua rau lub cev mus rau lub cev, thiab lub tshuab hlau nplaum ntawm cov hlau nplaum yooj yim hloov nrog qhov kev hloov ntawm cov kev sib txawv ntawm kev sib nqus. Lub sib nqus rhiab heev ntawm lub sij hawm no yog hais txog qhov tsis zoo ntawm 6 lub hwj chim ntawm 10.
Thaum ob lub cub hluavtaws muaj sucked ua ke, lawv tuaj yeem raug rhaub kom kub txog li ob puas celsius Celsius. Nyob rau ntawm no kub, lub hlau nplaum lub magnetism txo heev, thiab cov attraction ntawm cov hlau nplaum yog ntau txo. Qhov no ua rau nws yooj yim los ntxais ob daim ua ke. Cov hlau nplaum haib cais. Lub siab tshaj plaws ua haujlwm kub ntawm cov haib hlau nplaum yog 300 ° C, yog li nws tsis tuaj yeem ua kom sov siab txog 300 tawm C. 200 ° C yog txaus.
