Cov khoom siv ceramic tab tom dhau los ua ib feem tseem ceeb ntawm kev tsim khoom thoob ntiaj teb. Ua tsaug rau lawv qhov kev tawv siab, kev tiv taus kub siab, thiab kev tiv taus corrosion, cov khoom siv ceramic siab heev xws li alumina, silicon carbide, thiab aluminium nitride tau siv dav hauv aerospace, semiconductor ntim khoom, thiab kev siv biomedical. Txawm li cas los xij, vim yog qhov brittleness thiab qis fracture toughness ntawm cov ntaub ntawv no, lawv cov precision machining yeej ib txwm suav tias yog qhov nyuaj. Nyob rau hauv xyoo tas los no, nrog rau kev siv cov cuab yeej txiav tshiab, cov txheej txheem sib xyaw, thiab cov thev naus laus zis saib xyuas ntse, ceramic machining bottlenecks maj mam kov yeej.
Qhov Nyuaj: Kev Nyuaj Siab thiab Kev Nyuaj Siab Sib Koom Ua Ke
Tsis zoo li cov hlau, cov khoom siv ceramics feem ntau yuav tawg thiab tawg thaum lub sijhawm ua haujlwm. Piv txwv li, silicon carbide nyuaj heev, thiab cov cuab yeej txiav ib txwm feem ntau hnav sai sai, ua rau lub neej tsuas yog ib feem kaum ntawm cov hlau ua haujlwm. Cov teebmeem thermal kuj yog qhov txaus ntshai heev. Qhov kub thiab txias hauv zos thaum lub sijhawm ua haujlwm tuaj yeem ua rau muaj kev hloov pauv theem thiab kev ntxhov siab seem, ua rau muaj kev puas tsuaj hauv av uas tuaj yeem ua rau kev ntseeg siab ntawm cov khoom kawg tsis zoo. Rau cov khoom siv semiconductor, txawm tias qhov puas tsuaj nanometer-scale tuaj yeem ua rau cov cua sov dissipation thiab kev ua haujlwm hluav taws xob poob qis.
Kev Txhim Kho Txuj Ci: Cov Cuab Yeej Txiav Superhard thiab Cov Txheej Txheem Sib Xyaws
Yuav kom kov yeej cov teeb meem machining no, kev lag luam niaj hnub no tab tom tsim cov cuab yeej txiav tshiab thiab cov kev daws teeb meem zoo tshaj plaws. Cov cuab yeej txiav Polycrystalline diamond (PCD) thiab cubic boron nitride (CBN) tau hloov cov cuab yeej txiav carbide ib txwm muaj, ua rau muaj kev txhim kho kev hnav thiab kev ruaj khov ntawm machining. Ntxiv mus, kev siv ultrasonic vibration-assisted cutting thiab ductile-domain machining technologies tau ua rau "yas-zoo li" txiav cov khoom siv ceramic, uas yav dhau los tsuas yog tshem tawm los ntawm brittle fracture, yog li txo qhov tawg thiab ntug puas tsuaj.
Hais txog kev kho qhov chaw, cov thev naus laus zis tshiab xws li kev siv tshuaj lom neeg kho tshuab polishing (CMP), magnetorheological polishing (MRF), thiab plasma-assisted polishing (PAP) tab tom tsav cov khoom siv ceramic mus rau hauv lub sijhawm ntawm nanometer-level precision. Piv txwv li, txhuas nitride cua sov dab dej substrates, los ntawm CMP ua ke nrog PAP cov txheej txheem, tau ua tiav qhov roughness theem qis dua 2nm, uas yog qhov tseem ceeb heev rau kev lag luam semiconductor.
Kev Cia Siab Rau Daim Ntawv Thov: Los ntawm Chips mus rau Kev Kho Mob
Cov kev tshawb pom tshiab no tau raug txhais sai sai rau hauv kev siv hauv kev lag luam. Cov chaw tsim khoom semiconductor siv cov cuab yeej siv tshuab siab thiab cov txheej txheem them nyiaj thermal yuam kev kom ntseeg tau tias muaj kev ruaj khov ntawm cov wafers ceramic loj. Hauv thaj chaw biomedical, cov nplaim nkhaus ntawm zirconia implants yog machined nrog kev ua haujlwm siab los ntawm magnetorheological polishing. Ua ke nrog laser thiab txheej txheem, qhov no ntxiv txhim kho biocompatibility thiab durability.
Cov Qauv Yav Tom Ntej: Kev Tsim Khoom Txawj Ntse thiab Ntsuab
Saib mus tom ntej, kev siv tshuab ua los ntawm cov khoom siv ceramic precision machining yuav ntse dua thiab zoo rau ib puag ncig. Ntawm ib sab tes, kev txawj ntse ntawm cov khoom siv dag zog thiab cov ntxaib digital tau raug koom ua ke rau hauv cov txheej txheem tsim khoom, ua kom muaj kev ua haujlwm zoo tshaj plaws ntawm cov cuab yeej siv, cov txheej txheem txias, thiab cov txheej txheem machining. Ntawm qhov tod tes, kev tsim cov khoom siv ceramic gradient thiab kev siv cov khib nyiab rov ua dua tshiab tau dhau los ua qhov chaw tshawb fawb, muab cov hauv kev tshiab rau kev tsim khoom ntsuab.
Xaus lus
Nws yog qhov kwv yees tau tias kev ua haujlwm ceramic precision yuav txuas ntxiv mus rau "nano-precision, kev puas tsuaj tsawg, thiab kev tswj hwm ntse." Rau kev lag luam tsim khoom thoob ntiaj teb, qhov no tsis yog tsuas yog sawv cev rau kev tawg hauv kev ua cov ntaub ntawv xwb tab sis kuj yog qhov qhia tseem ceeb ntawm kev sib tw yav tom ntej hauv kev lag luam siab. Raws li ib feem tseem ceeb ntawm kev tsim khoom siab heev, kev nce qib tshiab hauv kev ua haujlwm ceramic yuav ncaj qha txhawb kev lag luam xws li aerospace, semiconductors, thiab biomedicine mus rau qhov siab tshiab.
Lub sijhawm tshaj tawm: Cuaj hlis-23-2025