Ceramic forsula hmoov yog cov tseem ceeb raw khoom ntawm MLCC, kev suav nyiaj rau 20% ~ 45% ntawm tus nqi MLCC. Tshwj xeeb, kev muaj peev xwm MLCC muaj raws li kev coj dawb huv, qhov loj me thiab cov morphology ntawm Ceramic hmoov Accounts rau cov nqi sib npaug. MLCC yog ib qho hluav taws xob Ceramic hmoov nplej tsim los ntawm kev ntxiv hloov kho additives rauBarium Titanate Hmoov, uas tuaj yeem siv ncaj qha siv raws li dielectric hauv MLCC.
Tsis tshua muaj lub ntiaj teb oxidesyog cov khoom siv doping tseem ceeb ntawm MLCC Dielectric hmoov. Txawm hais tias lawv tus account rau tsawg dua 1% ntawm MLCC raw cov ntaub ntawv, lawv tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev kho cov kev ntseeg tau ntawm MLCC. Lawv yog ib qho ntawm cov khoom tseem ceeb raw hauv kev txhim kho cov txheej txheem ntawm high-xaus mLcc ceramic hmoov.
1. Dab tsi yog lub ntiaj teb tsis tshua muaj? Tsis tshua muaj lub ntiajteb, tseem hu ua cov hlau tsis tshua muaj, yog ib lo lus dav dav rau kev ua haujlwm ntawm cov pab pawg hauv ntiaj teb. Lawv muaj cov qauv hluav taws xob tshwj xeeb thiab tshuaj lom neeg, thiab lawv cov hluav taws xob tshwj xeeb, kho qhov muag, sib nqus, thiab cov cua sib nqus, thiab cov cua sib nqus, thiab cov cua sib nqus
Lub ntiaj teb tsis tshua muaj muab faib ua: pom kev tsis tshua muaj lub ntiaj teb tseem ceeb (nrog me dua atomic lej me me):scandium(SC),yttrium(Y),lus qhia(La),xiIAB(CE),Preaseymium(Pr),neodymium(ND), Promethium (PM),samar(Sm) thiabhuab cua(EU); Lub ntiaj teb tsawg tsawg (nrog cov lej loj dua):gadolinium(GD),terbium(TB),dysprosium(Dy),Holmium(Ho),hoob laug(Er),thawj(Tm),ytterbium(YB),litetium(Lu).
Tsawg lub ntiaj teb Oxides yog siv dav hauv Ceramics, feem ntaucerium oxide, Lanthhanum oxide, neodymium oxide, dysprosium oxide, Samarium oxide, Holmium oxide, Erbium oxide, thiab lwm yam. Ntxiv cov nyiaj me me lossis kab tseem ceeb ntawm kev ceramics, tseem ceeb, cov khoom siv kho mob thiab tshuaj lom neeg thiab cov khoom siv ceramic.
2. Daim ntawv thov ntawm lub ntiaj teb tsawg hauv MLCCChev Titanateyog ib qho ntawm cov ntaub ntawv raw tseem ceeb rau kev tsim cov MLCC. Barium Titanate muaj cov ncuav zoo zoo tshaj plaws, ferroelectric thiab dielectric cov yam ntxwv. Cov ntshiab Barium thib Titanate muaj qhov muaj peev xwm loj me me ci, siab sinterric uas muaj kev poob siab thiab tsis haum rau kev tsim cov khoom siv ceramic ceramic.
Kev tshawb fawb tau pom tias lub luag haujlwm ntawm Barium Titanate yog ze rau nws cov qauv siv lead. Los ntawm doping, cov qauv siv lead ua ntawm cov qauv siv crystal ntawm Barium Titanate tuaj yeem tswj hwm, yog li kev txhim kho nws cov khoom dielecric. Qhov no feem ntau yog vim tias zoo-grained barium-core qauv tom qab doping, uas ua ib qho kev ua kom kub ntawm qhov kub thiab txias ntawm qhov kub.
Doping tsis tshua muaj lub ntiaj teb Titanate qauv yog ib txoj hauv kev los txhim kho cov sintering cwj pwm thiab kev ntseeg tau ntawm MLCC. Kev tshawb fawb ntawm lub ntiaj teb tsawg ion doped barium Titanate tuaj yeem raug xa rov qab mus rau thaum xyoo 1960. Qhov kev sib ntxiv ntawm lub ntiaj teb tsis tshua muaj roj txo qhov kev thauj mus los ntawm oxygen stability thiab txhim kho kev ua haujlwm ntawm dielectric thiab txhim kho kev ua haujlwm thiab kev ntseeg tau ntawm cov khoom. Feem ntau ntxiv tsawg lub ntiaj teb Oxides suav nrog:yttrium oxide(Y2O3), dysprosium oxide (Dy2o3), Holmium oxide (Ho2o3), thiab lwm yam.
Lub vojvoog ntawm lub ntiaj teb tsis tshua muaj kev cuam tshuam rau txoj haujlwm ntawm txoj kev ncaj ntawm txoj cai ntawm barium tentamate raws ceramics raws li Ceramics raws li Ceramics raws li Ceramics raws li Ceramics raws li Ceramics raws li Ceramics raws li Ceramics raws li Ceramics raws li Ceramics raws li Ceramics raws li Ceramics raws li Ceramics. Doping ntawm tsis tshua muaj lub ntiaj teb nrog cov hluav taws xob sib txawv muaj peev xwm hloov cov cuab yeej muaj muaju nrog lub plhaub tseem ceeb ntawm kev ntxhov siab ntawm lub muaju. Doping ntawm lub ntiaj teb tsawg ntawm lub ntiaj teb uas tsis tshua muaj hluav taws xob rau kev tsim cov pases pases ntawm cov muaju thiab cov kev ntxhov siab hauv sab hauv cov muaju; Cov lus qhia ntawm lub ntiaj teb tsis tshua muaj txiaj ntsig kuj ua rau muaj kev ntxhov siab tsawg dua thiab txhawb theem theem hauv lub Plhaub Core Core qauv. Txawm hais tias muaj me me ntawm cov quav ntxiv, cov yam ntxwv ntawm lub ntiaj teb tsis tshua muaj zog, xws li cov khoom loj me lossis cov duab, tuaj yeem cuam tshuam ntau cov khoom lag luam tag nrho lossis cov khoom lag luam zoo. Kev ua tau zoo MLCC yog tas li kev txhim kho ntawm miniaturization, siab stacking, muaj peev xwm loj, siab ntseeg tau, thiab tus nqi qis. Lub ntiaj teb feem ntau txiav cov khoom lag luam MLCC muaj ntau ntxiv, thiab tsis tshua muaj cov khoom siv doping, yuav tsum muaj nanoscale particle loj thiab hmoov zoo dispersion.
Lub Sijhawm Post: Oct 25-2024