(Ceramic hmoovTsim los ntawmWintrustek)
Ceramic hmoovyog tsim los ntawm ceramic hais thiab additives uas ua rau nws yooj yim rau siv los ua cov khoom. Tus neeg saib xyuas kev sib khi yog siv los khaws cov hmoov ua ke tom qab kev sib cog lus, thaum tus neeg sawv cev tso tawm ua rau nws muaj peev xwm tshem tawm cov khoom sib txuas ntawm lub compaction tuag tau yooj yim.
Cov ntaub ntawv piv txwv
ALUMINA
Ceramic nrog cov tshuaj formula Al2O3 hu ua alumina. Cov khoom tseem ceeb ntawm cov hmoov no yog lawv cov qauv, purity, hardness, thiab qhov chaw tshwj xeeb.
ALUMINIUM NITRIDE
Hauv kev lag luam semiconductor thiab electronics, cov hmoov no ' thermal thiab hluav taws xob zoo muaj nuj nqis tshwj xeeb.
HEXAGONAL BORON NITRIDE
Hexagonal boron nitride hmoovmuaj hluav taws xob zoo rwb thaiv tsev, thermal conductivity, thiab tshuaj stability.
ZYP
ZYP hmoov yog tsim los ntawm zirconia uas tau ruaj khov nrog yttrium oxide thiab yog ib qho zoo kawg nkaus, zoo heev reactive hmoov.
Kev tsim khoom
milling / sib tsoo
Milling, tseem hu ua kev sib tsoo, yog ib txoj hauv kev tsim cov hmoov ceramic uas qhov loj me ntawm cov khoom siv ceramic raug txo kom txog thaum nws hloov mus rau hauv cov hmoov hmoov.
KAUJ RUAM
Lwm txoj kev nthuav dav rau kev tsim cov hmoov ceramic yog daim kab xev casting. Nws yog ua hauj lwm nyob rau hauv zus tau tej cov integrated circuit substrates. Tsis tas li ntawd, nws yog siv nyob rau hauv kev tsim kho ntawm multilayer capacitors thiab integrated circuit pob qauv. Kev rov ua dua yuav tshwm sim rau ntawm tus neeg nqa khoom siv cov hmoov ceramic, cov kuab tshuaj organic, thiab cov ntaub ntawv polymer. Teflon los yog lwm yam khoom uas tsis yog-stick ua hauj lwm raws li tus cab kuj nto. Tom qab ntawd, siv lub npoo ntawm riam, cov hmoov ceramic ua ke (slurry) raug faib thoob plaws qhov chaw du mus rau qhov kev txiav txim siab tuab. Tom qab ziab, txheej ntawm ceramic hmoov sib tov yog npaj rau kev ua.
NPAJ
Ceramic hmoov yog hloov los ntawm cov txheej txheem no los ntawm nws cov granular lub xeev mus rau ib tug ntau cohesive thiab ntom. Cov txheej txheem no compacts ceramic hmoov, raws li lub npe qhia. Txias los yog kub nias tuaj yeem siv los ua cov khoom siv ceramic.
Txhaj Moulding
Txhaj tshuaj molding yog siv los tsim cov ntaub ntawv ceramic nrog cov duab geometry nyuaj. Cov txheej txheem no tuaj yeem siv los tsim cov ntaub ntawv ceramic hauv ntau qhov ntau. Txhaj tshuaj molding yog txheej txheem ntau yam. Nws yog siv rau ob qho tib si oxide ceramics thiab non-oxide ceramics. Tsis tas li ntawd, nws yog qhov tseeb heev. Cov khoom kawg ntawm kev txhaj tshuaj molding yog qhov zoo.
PLAB casting
Slip casting yog cov hmoov ceramic ntau lawm txoj kev uas feem ntau ua haujlwm hauv cov tais diav. Feem ntau, nws yog siv los ua cov duab uas nyuaj rau kev siv lub log. Slip casting yog txheej txheem ntev uas yuav siv sijhawm txog 24 teev. Ntawm qhov ntxiv, cov khoom tiav yog qhov tseeb thiab txhim khu kev qha. Nyob rau hauv cov teb chaws Europe, plam casting hnub rov qab mus rau 1750s, thiab nyob rau hauv Tuam Tshoj, nws rov qab ntau dua. Qhov kev ncua ntawm cov hmoov ceramic ua rau nws tuaj yeem ua ke raws li daim nplaum. Tom qab ntawd ib tug ntxeem tau pwm yog sau nrog daim nplaum. Raws li cov pwm dries, tsim ib txheej txheej ntawm cov ntawv nplaum.
GEL CASTING
Gel casting yog txheej txheem ceramic hmoov uas tau pib hauv Canada xyoo 1960s. Nws yog ua hauj lwm los tsim intricate ceramic duab uas muaj zog thiab zoo heev. Hauv cov txheej txheem no, monomer, cross-linker, thiab dawb radical pib ua ke nrog cov hmoov ceramic. Kev sib xyaw ua ke yog tom qab ntawd ntxiv rau kev ncua dej. Txhawm rau kom cov sib tov sib xyaw kom nruj, cov ntaub ntawv uas twb muaj lawm yog polymerized. Kev sib xyaw ua ke tom qab ntawd hloov mus rau hauv gel. Cov gel sib tov yog poured rau hauv pwm thiab tso cai rau solidify muaj. Tom qab solidification, cov khoom raug tshem tawm los ntawm pwm thiab qhuav. Cov khoom tiav yog lub cev ntsuab uas yog tom qab sintered.
EXTRUSTION
Extrusion yog txheej txheem los ua cov hmoov ceramic uas tuaj yeem siv los ua cov khoom siv rau hauv cov duab uas xav tau. Rub cov hmoov ceramic los ntawm kev tuag nrog ib qho kev hla ntu. Kev tsim cov ceramics nrog intricate cross-section yog ua tau nrog cov txheej txheem no. Tsis tas li ntawd, nws tsis siv zog txaus rau cov ntaub ntawv kom tawg lawv. Cov khoom kawg ntawm cov txheej txheem no muaj zog thiab muaj kev qhuas nto polished. Xyoo 1797, thawj txheej txheem extrusion tau ua tiav. Ib tug neeg los ntawm lub npe ntawm Yauxej Bramah tau ua nws. Extrusion tej zaum yuav sov, txias, los yog kub. Ntawm qhov kub siab tshaj ntawm cov khoom siv recrystallization kub, kub extrusion tshwm sim. Sov extrusion tshwm sim saum chav tsev kub thiab hauv qab cov khoom siv recrystallization kub, qhov txias extrusion tshwm sim ntawm chav tsev kub.
