Dab tsi yog Magnetic? Dab tsi yog Magnetic Materials? Thov Saib Cov No

Cov khoom siv sib nqus yog: neodymium hlau boron, samarium cobalt, ferrite, AlNiCo, thiab lwm yam.

Sib nqus
Cov kev sim qhia tias txhua qhov teeb meem tuaj yeem sib nqus ntau dua lossis tsawg dua nyob rau sab nraud magnetic teb, tsuas yog qib ntawm magnetization txawv. Raws li cov yam ntxwv ntawm cov teeb meem nyob rau hauv sab nraud magnetic teb, teeb meem yuav muab faib ua tsib pawg: paramagnetic teeb meem, diamagnetic teeb meem, ferromagnetic teeb meem, ferromagnetic teeb meem, antiferromagnetic teeb meem.
Peb hu cov khoom siv paramagnetic thiab cov khoom siv diamagnetic li cov khoom sib nqus tsis muaj zog, cov khoom siv ferromagnetic thiab cov khoom ferromagnetic li cov khoom sib nqus muaj zog.

Cov khoom siv hlau nplaum
Cov khoom sib nqus mos: Cov khoom siv sib nqus mos yog ib yam khoom sib nqus uas tsis muaj zog quab yuam thiab siab permeability. Nws yooj yim rau magnetize thiab demagnetize. Piv txwv li: mos ferrite, amorphous nanocrystalline alloy.
Cov khoom siv hlau nplaum nyuaj: tseem hu ua cov khoom sib nqus ruaj khov, hais txog cov khoom siv uas nyuaj rau kev sib nqus thiab nyuaj rau demagnetize ib zaug magnetized. Nws lub ntsiab yam ntxwv yog siab coercive quab yuam. Xws li lub ntiaj teb tsis tshua muaj cov khoom siv hlau nplaum ruaj khov, cov khoom siv hlau nplaum ruaj khov thiab cov ferrite ruaj khov.
Cov khoom siv hlau nplaum ua haujlwm: cov khoom siv magnetostrictive, cov ntaub ntawv sib nqus, cov ntaub ntawv magnetoresistance, cov ntaub ntawv sib nqus npuas, cov ntaub ntawv magneto-optical thiab cov ntaub ntawv sib nqus.