4. Spinning sib nqus ferrite
Gyromagnetic ferrite feem ntau yog siv los ua ntau yam khoom siv microwave, yog li nws tseem hu ua microwave ferrite. Tam sim no, lub ntsiab dav siv "spinel hom thiab pomegranate hom ferrites. Spinel hom magnetic ferrite yog qhov dav siv ntau tshaj plaws, feem ntau siv magnesium ferrite CMg -- Mn, Mg -- Mn -- Al2O3 , Mg -- Cr ferrite, nickel ferrite (Ni -- Mg, Ni -- Zn, Ni -- Al ferrite, thiab lwm yam).) Tsis tas li ntawd, muaj lithium ferrite CLi - Mg, Li - Al ferrite thiab lwm yam.
Garnet hom gyromagnetic ferrite yog tsim los ntawm cov hlau oxides uas muaj cov ntsiab lus tsawg hauv ntiaj teb, qhov tseem ceeb tshaj plaws yog yttrium garnet ferrite. Kuj tseem muaj garnet gyromagnetic ferrites nrog me me lossis tsis tshua muaj lub ntiaj teb, xws li Bi - Ca - V garnet.
Nws tuaj yeem siv rau hauv cov kab ntau zaus. Nws yog tsim los ntawm kev hloov Fe hauv Ba, Sr thiab pb ferrites nrog Al.
5. Moment sib nqus ferrite
Feem ntau hais lus, spinel ferrites nrog siab ceev, zoo li grain thiab loj crystalline anisotropy tuaj yeem ua rau lub sijhawm sib nqus ferrites. Lub sijhawm sib nqus ferrite muaj; Mn-mg, Mn-Cu, Mn-Ni, Li -- Mn, Li -- Ni ferrite ceramic khoom.
Thaum cov ntsiab lus ntawm Fe2O3 hauv Mn-Mg lub sijhawm sib nqus ferrite nyob nruab nrab ntawm 40 thiab 50 feem pua, cov ntsiab lus ntawm MgO thiab MnO tso cai rau ntau yam kev xaiv. Cov ntsiab lus siab ntawm MnO ua rau cov ferrite muaj lub voj voos hysteresis zoo, tab sis ntau dhau, magnetization yuav tsum muaj qhov loj dua tam sim no, uas yog qhov tsis zoo rau kev ua haujlwm ntawm cov tub ntxhais hlau nplaum. Thaum Fe2O3 cov ntsiab lus yog 43 feem pua thiab MgO: MnO: Fe2O3 yog 1: 3: 3, Mn-Mg ferrite lub sij hawm sib nqus cov yam ntxwv yog qhov zoo tshaj plaws. La2O3 ua lub ntsiab tsis tshua muaj hauv ntiaj teb nyob rau hauv cov mis yog pab txhim kho kev ua tau zoo ntawm lub sij hawm sib nqus ferrite.
Cov saum toj no tsuas yog qhia luv luv rau cov pawg thiab cov txheej txheem ntawm cov hlau nplaum ceramics. Cov yam ntxwv thev naus laus zis ntawm cov hlau nplaum ceramics tseem tab tom kawm ntxiv. Yuav kwv yees tau; Nrog rau kev txhim kho kev tshawb fawb thiab thev naus laus zis, cov khoom siv hlau nplaum tshiab yuav ua lub luag haujlwm loj hauv ntau qhov chaw.
