Dab tsi cuam tshuam rau kev ntseeg siab ntawm metallized ceramics?

1. Cov khoom tseem ceeb
Qhov zoo ntawm ceramic matrix:
Purity ntawm ceramics: Cov ntsiab lus siab impurity tuaj yeem ua rau kev ua haujlwm tsis ruaj khov ntawm cov ceramics, cuam tshuam rau lub zog sib txuas ntawm cov txheej metallized thiab ceramics nrog rau tag nrho cov khoom siv hluav taws xob thiab khoom siv.
Ceramic siv lead ua qauv: Cov qauv siv lead ua sib txawv muaj qhov sib txawv thermal expansion coefficients, mechanical zog thiab lwm yam ntxwv. Yog tias cov qauv siv lead ua ceramic tsis sib npaug lossis tsis zoo, nws yuav ua rau muaj kev ntxhov siab thaum siv thiab txo kev ntseeg siab.
Ceramic density: Qhov ntom ntom tsis sib xws yuav ua rau muaj qhov sib txawv ntawm kev ua haujlwm hauv cheeb tsam, cuam tshuam rau tag nrho kev ntseeg siab ntawm metallized ceramics.
Metallized txheej khoom:
Kev xaiv cov hlau: Cov hlau sib txawv muaj qhov sib txawv ntawm lub cev, tshuaj thiab hluav taws xob. Piv txwv li, thermal expansion coefficient ntawm qee cov hlau yog qhov txawv ntawm cov ceramics, thiab kev ntxhov siab tau yooj yim tsim thaum kub hloov, ua rau cov txheej metallized poob los yog tawg.
Thickness ntawm hlau txheej: nyias thickness yuav tsis muaj txaus conductivity thiab mechanical zog; thaum tuab tuab heev tuaj yeem ua rau tus nqi nce thiab yooj yim ua rau tsis sib xws thaum lub sijhawm tsim khoom, cuam tshuam kev ntseeg tau.
2. Cov txheej txheem txheej txheem
Metalization txheej txheem:
Cov txheej txheem sib txawv xws li tshuaj vapor deposition (CVD), lub cev vapor deposition (PVD), electroplating, thermal spraying, thiab lwm yam yuav cuam tshuam qhov kev ntseeg ntawm metallized ceramics. Piv txwv li, CVD cov txheej txheem tuaj yeem tau txais kev hnav khaub ncaws thiab tuab metalization txheej, tab sis cov txheej txheem yog qhov nyuaj thiab tus nqi yog siab; cov txheej txheem electroplating yog qhov yooj yim, tab sis tej zaum yuav muaj teeb meem nrog txheej txheej tsis sib xws.
Kev tswj ntawm cov txheej txheem tsis: Kev tswj cov kev txwv xws li qhov kub thiab txias, siab, thiab lub sijhawm yog qhov tseem ceeb rau qhov zoo ntawm txheej metallization. Cov txheej txheem tsis tsim nyog yuav ua rau muaj kev sib txuas tsis txaus ntawm txheej txheej metallization thiab ceramic, porosity siab, thiab siab roughness, txo kev ntseeg tau.
Kev kho cua sov txheej txheem:
Annealing kev kho mob: Nws tuaj yeem tshem tawm qhov kev ntxhov siab sab hauv hauv metallized ceramic thiab txhim kho nws txoj kev ruaj ntseg. Txawm li cas los xij, kev xaiv tsis raug ntawm annealing kub thiab lub sijhawm yuav ua rau muaj kev hloov pauv hauv kev ua haujlwm ntawm ceramic matrix lossis txheej metallization, cuam tshuam kev ntseeg tau.
Sintering txheej txheem: Rau qee qhov metallized ceramics, kev kho sintering yuav tsum tau ua. Kev tswj ntawm sintering kub, huab cua, thiab lub sij hawm yuav cuam tshuam qhov densification degree ntawm ceramic thiab lub zog sib txuas ntawm cov txheej metallization, yog li cuam tshuam rau kev ntseeg tau.
3. Cov xwm txheej ib puag ncig
Kub hloov pauv:
Qhov sib txawv ntawm thermal expansion coefficients: Cov hlau thiab ceramics muaj qhov sib txawv thermal expansion coefficients, uas yuav ua rau thermal stress thaum kub hloov. Yog hais tias lub thermal kev nyuab siab tshaj qhov muaj peev xwm ntawm cov txheej txheem metallization lossis ceramic, nws yuav ua rau tawg, tawg thiab lwm yam teeb meem, txo kev ntseeg tau.
Kev ruaj ntseg kub siab: Hauv qhov chaw kub kub, metallized ceramics yuav raug oxidation, theem hloov thiab lwm yam kev cuam tshuam, cuam tshuam rau lawv cov kev ua tau zoo thiab kev ntseeg tau. Piv txwv li, qee cov hlau yuav oxidize ntawm qhov kub thiab txias, ua rau cov conductivity tsawg; cov ceramic matrix tuaj yeem muag los yog nkag rau ntawm qhov kub thiab txias, cuam tshuam rau lub zog txhua yam.
Humidity thiab corrosion:
Humid ib puag ncig: Cov av noo ib puag ncig yuav ua rau saum npoo ntawm metallized ceramics nqus dej noo, ua rau corrosion lossis hluav taws xob ua haujlwm tsis zoo. Tshwj xeeb tshaj yog nyob rau hauv lub xub ntiag ntawm electrolytes, xws li ntsev tsuag ib puag ncig, qhov teeb meem corrosion yuav hnyav dua.
Tshuaj corrosion: Hauv qee qhov chaw tshwj xeeb tshuaj, metallized ceramics yuav raug corroded los ntawm cov tshuaj, rhuav tshem cov txheej metallization lossis ceramic matrix thiab txo kev ntseeg tau.
Mechanical stress:
Kev vibration thiab kev poob siab: Thaum lub sij hawm thauj mus los, kev teeb tsa lossis siv, metallized ceramics yuav raug kev co thiab kev poob siab. Yog tias lub zog siv tshuab tsis txaus lossis lub zog sib txuas ntawm cov txheej metallization thiab ceramic tsis txaus, cov teeb meem xws li tawg thiab tawg yog qhov tshwm sim.
Siab: Hauv qee qhov kev siv high-voltage, metallized ceramics yuav tsum tiv taus siab dua. Yog tias cov khoom siv compressive tsis txaus, nws yuav ua rau deformation, tawg thiab lwm yam teeb meem, cuam tshuam rau kev ntseeg tau.
4. Cov qauv tsim
Tus qauv tsim:
Cov duab thiab qhov loj me: Cov duab tsis tsim nyog thiab qhov loj me tuaj yeem ua rau muaj kev ntxhov siab thiab txo qhov kev ntseeg siab ntawm metallized ceramics. Piv txwv li, cov kaum ntse ntse thiab cov khoom nyias nyias yog qhov ua rau tawg thaum siv.
Txoj kev sib txuas: Txoj kev sib txuas ntawm metallized ceramics thiab lwm yam khoom yuav cuam tshuam rau nws txoj kev ntseeg tau. Yog tias qhov kev sib txuas tsis ruaj khov lossis muaj kev ntxhov siab, cov teeb meem xws li xoob thiab tawg yuav tshwm sim thaum siv.
Hluav taws xob tsim:
Cov ceev ceev tam sim no: qhov ceev dhau lawm yuav ua rau cov qauv metallized los ua kom kub, ua rau muaj kev cuam tshuam hauv zos nce, yog li cuam tshuam nws cov kev ua tau zoo thiab kev ntseeg tau. Thaum tsim, nws yog ib qho tsim nyog yuav tsum xaiv qhov thickness thiab conductive cheeb tsam ntawm lub metallized txheej los xyuas kom meej tias tam sim no ceev nyob rau hauv ib tug ntau yam ntawm kev nyab xeeb.
Kev faib hluav taws xob hauv hluav taws xob: Kev faib hluav taws xob tsis sib xws tuaj yeem ua rau hauv zos paug lossis hluav taws xob tawg, ua kom puas lub rwb thaiv tsev ntawm metallized ceramics. Thaum tsim qauv, nws yog ib qho tsim nyog yuav tau xav txog qhov kev faib hluav taws xob thiab siv cov kev ntsuas coj los ua kom zoo dua qhov kev faib hluav taws xob.
Yog tias koj xav paub txog yam uas cuam tshuam rau kev ntseeg siab ntawm metallized ceramics, koj tuaj yeem tiv tauj Superior Ceramics Times thiab peb yuav ua qhov zoo tshaj plaws los pab koj!