Qhov sib txawv ntawm qhov siab tshaj plaws ua haujlwm kub ntawm cov hlau nplaum thiab Curie kub

Qhov sib txawv ntawm qhov siab tshaj plaws ua haujlwm kub ntawm cov hlau nplaum thiab Curie kub

Qee tus neeg ntseeg tias qhov kub thiab txias Curie thiab qhov kub siab tshaj plaws uas lub hlau nplaum tuaj yeem ua haujlwm tau sib npaug. Nyob rau hauv qhov tseeb, qhov no yog ib tug cuav tswv yim. Muaj tsib pawg hauv cov khoom sib nqus tuaj yeem raug cais tawm: ferromagnetic, ferrimagnetic, antiferromagnetic, paramagnetic, thiab diamagnetic. Cov hlau ferromagnetic npib tsib xee, cobalt, thiab hlau kuj yog cov hlau nplaum ruaj khov.

Thaum qhov kub nce siab tshaj ib theem, cov ntaub ntawv ferromagnetic raug hloov mus rau theem thib ob thiab poob lawv lub peev xwm los tswj cov hlau nplaum sib nqus. Lub peev xwm ntawm cov ntaub ntawv no yuav tsum tau magnetized los yog attracted rau ib tug hlau nplaum yuav ploj mus thaum lawv hloov mus rau hauv ib tug paraferromagnetic xeev. Curie kub lossis Curie point yog lub npe muab rau cheeb tsam no.

Cov hlau nplaum qhov siab tshaj plaws ua haujlwm kub yog qhov taw tes uas cov cua sov ntxiv ua rau cov hlau nplaum pib poob lub zog. Thaum cov hlau nplaum rov qab los rau hauv chav tsev kub, qhov poob ntawm lub zog yuav tsawg heev - tsawg dua 5 feem pua ​​- rau lub sijhawm tshwj xeeb. Nws yuav tsum nco ntsoov tias ntau haiv neeg muaj ntau yam qauv.

Lub Curie kub rau tib lub hlau nplaum yuav ua tau ntau dua li nws qhov siab tshaj plaws ua haujlwm kub. Curie qhov kub thiab txias ua haujlwm siab tshaj plaws ntawm ntau yam ntawm cov hlau nplaum ruaj khov tau piav qhia hauv daim duab. Qhov siab tshaj plaws ua haujlwm kub yog thawj tus nqi, thaum Curie kub yog qhov thib ob.

Qhov siab tshaj plaws ua haujlwm kub ntawm cov hlau nplaum yog cuam tshuam los ntawm Curie kub. Cov hlau nplaum muaj pes tsawg leeg yog tib yam uas cuam tshuam rau Curie kub. Cov neeg tsim khoom ntawm cov hlau nplaum yuav tsum tau ntxiv cobalt, dysprosium, thiab terbium cov ntsiab lus los tsa cov hlau nplaum Curie kub kom ua tiav qhov siab tshaj plaws ua haujlwm kub.

Lub hlau nplaum qhov siab tshaj plaws ua haujlwm kub yog cuam tshuam los ntawm nws qhov kub thiab txias Curie nrog rau nws qhov kev quab yuam thiab kev ua haujlwm.