Cov Lus Qhia luv luv rau Kev Kub Kub Txias SmCo Magnets

Kev ua haujlwm siab SmCo hlau nplaum, ultra-siab kub SmCo hlau nplaum, thiab kub compensated SmCo hlau nplaum yog peb qhov kev tshawb fawb hotspots nyob rau hauv Samarium Cobalt SmCo hlau nplaum cheeb tsam. Kub coefficient ntawm remanence_Brntawm cov pa SmCo hlau nplaum twb tsis tshua muaj nyob rau hauv kev sib piv nrog rau lwm yam lag luam muaj nyob mus li hlau nplaum khoom, tshwj xeeb tshaj yog Neodymium hlau nplaum thiab ferrite hlau nplaum. Tab sis nws tseem tsis tuaj yeem txaus siab rau qhov tsawg kawg nkaus_BrDaim ntawv thov nyob rau hauv aerospace thiab precision instruments, xws li mus ncig yoj raj, gyroscopes, thiab accelerometers. Yog li ntawd, qis_BrSmCo hlau nplaum, uas tseem hu ua kub compensated SmCo hlau nplaum, tau tsim los hais txog cov kev siv kub kub stability. Cov_Brntawm qhov kub thiab txias compensated SmCo hlau nplaum yog ze ze rau xoom thiab yog li muab cov hlau nplaum tas li lub zog thoob plaws qhov kub thiab txias. Dhau li qis_BrSmCo hlau nplaum, SDM kuj tau paub ntau lawm ntawm xoom kub coefficient hlau nplaum thiab zoo kub coefficient hlau nplaum.

Rau cov hlau tsis tshua muaj kev hloov pauv hauv ntiaj teb (RE-TM) alloy, magnetization poob nrog qhov kub thiab txias thaum RE yog lub teeb tsis tshua muaj hauv ntiaj teb (LREEs, LREEs= Sm, Nd, Pr, Ce). Txawm li cas los xij, magnetization ntawm alloy tam sim no tsis-linear hloov pauv nrog qhov kub thiab txias thaum RE yog hnyav tsawg hauv ntiaj teb (HREEs, HREEs= Gd, Tb, Er, Ho). Siv RETM₅alloy ua piv txwv, saturation magnetization ntawm GdCo₅thiab ErCo₅nce nrog qhov kub thiab txias hauv thaj tsam ntawm -150 ~ 450 thiab -270 ~ 250 degrees Celsius, feem. Qhov no feem ntau yog vim ferrimagnetic coupling yam ntxwv uas tsim los ntawm antiparallel kev npaj ntawm HREEs thiab Cobalt lub atomic magnetic caij. Yog li ntawd, hloov Samarium los ntawm nruab nrab Gadolinium lossis Erbium yuav muaj peev xwm tsim tau qis_Br(Sm, HREES) Co₅hlau nplaum vim poob ntawm saturation magnetization hauv SmCo₅yog them los ntawm HREEsCo₅. 2:17 Sm₂(Co, Cu, Fe, Zr)₁₇Cov hlau nplaum kuj tseem tuaj yeem tsim cov hlau nplaum kub los ntawm kev hloov cov khoom nruab nrab hauv ntiaj teb tsis tshua muaj (MREEs) thiab HREEs rau Samarium uas zoo ib yam li 1: 5 hom SmCo hlau nplaum.