Cov hlau nplaum tsis sib xws, tseem hu ua cov hlau nplaum kev cai, yog cov hlau nplaum uas tsis yog cov duab thiab qhov ntau thiab tsawg. Lawv tau siv dav hauv ntau daim ntawv thov uas cov hlau nplaum txheem tsis tuaj yeem muab cov hlau nplaum tsim nyog lossis cov khoom siv tshuab. Cov hlau nplaum tsis sib xws muaj ntau yam uas ua rau lawv muaj txiaj ntsig zoo hauv ntau qhov kev lag luam.
Ua ntej, cov hlau nplaum tsis sib xws tuaj yeem raug kho kom haum rau ntau yam kev siv. Lawv tuaj yeem ua rau ntau yam duab thiab qhov ntau thiab tsawg, xws li lub tog raj kheej, squares, daim duab peb sab, thiab txawm tias nyuaj geometry. Qhov no tso cai rau cov tuam txhab tsim cov hlau nplaum kev cai uas haum rau cov kev cai tshwj xeeb rau cov ntawv thov tshwj xeeb. Cov hlau nplaum tsis sib xws kuj tuaj yeem tsim los muab cov khoom sib nqus tshwj xeeb, xws li lub zog sib nqus siab, siab coercivity, thiab sib nqus anisotropy. Los ntawm kev kho cov hlau nplaum cov duab thiab cov khoom sib nqus, cov tuam ntxhab tuaj yeem ua tiav qhov xav tau lub zog sib nqus thiab cov kev taw qhia rau kev ua haujlwm siab tshaj plaws.
Qhov thib ob, cov hlau nplaum tsis tu ncua muaj cov khoom siv zoo dua qub piv rau cov hlau nplaum txheem. Lawv muaj zog heev thiab tuaj yeem tiv taus qhov kub thiab txias, siab, thiab lwm yam mob hnyav. Cov hlau nplaum tsis tu ncua kuj tseem tiv taus corrosion thiab hnav, uas ua rau lawv zoo tagnrho rau kev siv nyob rau hauv ib puag ncig nyuaj xws li aerospace, marine, thiab cov cuab yeej siv hnyav.
Thib peb, cov hlau nplaum tsis sib xws tuaj yeem tsim los ntawm ntau yam khoom sib nqus. Qhov no ua kom ntseeg tau tias lawv tuaj yeem siv tau rau ntau yam kev siv, suav nrog cov khoom siv kho mob, hluav taws xob motors, sensors, thiab hais lus. Cov khoom siv sib nqus uas siv rau cov hlau nplaum tsis sib xws yog neodymium, samarium cobalt, thiab ferrite. Cov ntaub ntawv no raug xaiv raws li daim ntawv thov kev xav tau rau kev sib nqus lub zog, qhov kub thiab txias, thiab kev tiv thaiv corrosion.
Thaum kawg, cov hlau nplaum tsis sib xws yog tus nqi zoo. Tsis zoo li cov hlau nplaum txheem, cov hlau nplaum tsis sib xws tuaj yeem tsim tshwj xeeb rau daim ntawv thov, txo qhov kev xav tau ntawm cov qauv tsim kim lossis kev cuam tshuam hauv kev ua haujlwm. Tsis tas li ntawd, lawv tuaj yeem tsim cov khoom me me ntawm tus nqi tsim nyog, ua rau lawv muaj peev xwm daws tau ntau yam kev lag luam.
Hauv kev xaus, cov hlau nplaum tsis sib xws muaj ntau yam uas ua rau lawv muaj txiaj ntsig zoo hauv ntau yam kev lag luam. Lawv tuaj yeem tsim kho kom haum rau cov kev xav tau tshwj xeeb, muaj cov khoom siv kho tshuab zoo tshaj, tuaj yeem tsim los ntawm ntau yam khoom sib nqus, thiab muaj txiaj ntsig zoo. Nrog rau cov txiaj ntsig zoo no, cov hlau nplaum tsis sib xws yog cov kev daws teeb meem txhim khu kev qha rau ntau yam kev siv, thiab lawv cov kev siv yuav tsum loj hlob raws li kev siv tshuab txuas ntxiv mus.