Samarium cobalt hlau nplaum, tseem hu ua samarium cobalt ruaj khov hlau nplaum, yog lub zog ruaj khov hlau nplaum ua los ntawm ob lub ntsiab lus: samarium thiab cobalt. Zoo li NdFeB, nws kuj yog nyob rau hauv lub ntiaj teb tsis tshua muaj hlau nplaum qeb. Tam sim no, nws tsuas yog muaj SmCo5 thiab Sm2Co17.
Qhov sib nqus sib nqus ntawm samarium cobalt thiab neodymium hlau boron. Txawm hais tias lub zog sib nqus tsis yog qhov muaj zog, samarium cobalt muaj ob qhov txiaj ntsig zoo, uas yog, qhov kub thiab txias ntau dua thiab ntau dua corrosion kuj. Yog li ntawd, lawv muab tus nqi zoo tshaj plaws thaum sib piv kev ua tau zoo thiab qhov loj me hauv qhov kub thiab txias ib puag ncig lossis kev siv.
Cov hlau nplaum samarium cobalt tau qhia hauv xyoo 1970 yog thawj cov hlau nplaum uas tsis tshua muaj hauv ntiaj teb. Lawv qhov kev taw qhia yog kev hloov pauv, tripling lub zog siab tshaj plaws ntawm lwm cov hlau nplaum thaum lub sijhawm. Ua ntej qhov kev taw qhia ntawm samarium cobalt hlau nplaum, tus qauv hauv cov hlau nplaum yog Alnico alloy hlau nplaum. Nws tsis yog txog thaum nce cov nqi tsim khoom coj cov engineers los tshawb nrhiav cov khoom pheej yig dua uas cov hlau nplaum neodymium tau tsim thiab tam sim no yog cov hlau nplaum muaj zog tshaj plaws hauv ntiaj teb.
Qhov zoo ntawm samarium cobalt ruaj khov hlau nplaum
Samarium cobalt hlau nplaum tsis muaj zog li super muaj zog neodymium hlau nplaum, tab sis lawv muaj qee qhov zoo. Samarium cobalt hlau nplaum muaj qhov dav dav ntawm kev khiav hauj lwm kub, superior kub coefficients, thiab ntau dua corrosion kuj. Thiab nws pib outperform tshwj xeeb kub neodymium hlau nplaum ntawm 150 degree .
Samarium cobalt hlau nplaum tsis tsuas yog ua tau zoo ntawm qhov kub thiab txias tab sis kuj tswj lawv cov khoom sib nqus txawm tias qhov kub thiab txias qis dua xoom ({0}} degree), ua rau lawv nrov hauv cov ntawv thov cryogenic.
Vim hais tias feem ntau qib ntawm samarium cobalt muaj zoo tsis muaj hlau, lawv muaj corrosion kuj zoo heev.
Disadvantages ntawm samarium cobalt hlau nplaum
Ntawm qhov downside, samarium cobalt hlau nplaum tuaj yeem kim dua piv rau cov hlau nplaum neodymium vim yog tus nqi tsim cov cobalt (lub khw cobalt yog tus nqi rhiab). Zoo li lwm cov hlau nplaum hauv ntiaj teb tsis tshua muaj, lawv kuj yog cov nkig heev thiab yog li tsim nyog rau kev siv hauv cov ntawv thov uas tsis tas yuav muaj kev cuam tshuam ncaj qha.
