Hauv kev lag luam kev lag luam, cov ntaub ntawv ceramic tau sau cov lus dab neeg tshiab. Tsis zoo li cov hlab ntsha ceramics hauv lub neej niaj hnub, cov khoom siv ceramics tau pom lawv cov kev ua tau zoo hauv cov haujlwm tseem ceeb xws li metallurgy, chemical engineering, thiab lub zog tshiab. Txhuas oxide, silicon nitride, zirconium oxide thiab lwm yam ntaub ntawv muaj lawv tus kheej yam ntxwv, tab sis thaum nws los txog rau lub zog ntawm lub zog ntawm "tag nrho cov neeg uas ua ntawv",silicon carbide ceramicsyog undoubtedly qhov zoo tshaj plaws.
Alumina ceramics zoo li cov neeg ua haujlwm ib txwm muaj, paub txog lawv qhov nyuaj thiab pheej yig, tab sis lawv muaj kev cuam tshuam los ntawm qhov kub thiab txias. Silicon nitride ceramics, zoo li cov cuab yeej siv tau zoo, muaj cov thermal poob siab zoo, tab sis tuaj yeem pom "mos tav" hauv qee qhov chaw corrosive. Zirconia ceramics zoo li cov tub rog tshwj xeeb, paub txog lawv qhov hnyav heev, tab sis lawv tuaj yeem "tso tseg" thaum ntxov ntawm qhov kub thiab txias thiab ntev kev sib ntaus sib tua.
Hauv kev sib piv, silicon carbide ceramics tau pom tias muaj zog zoo kawg nkaus. Cov khoom siv lead ua no, uas yog nruj me ntsis tsim nrog silicon carbon atoms, inherently muaj peb qhov zoo: nws lub zog thermal conductivity ua kom nws "tso" nyob rau hauv qhov kub thiab txias, nws zoo heev hnav tsis kam ua rau nws "ua siab loj dua" nyob rau hauv hnyav ua hauj lwm tej yam kev mob, thiab nws cov tshuaj stability yog zoo li ib tug natural tiv thaiv ntaub thaiv npog, tiv thaiv corrosive xov xwm ntawm ntau yam.
Hauv kev tswj hwm thermal, thermal conductivity ntawm silicon carbide ceramics yog peb npaug ntawm cov hlau zoo tib yam. Qhov no innate "kub dissipation txuj ci" ua rau nws yog ib qho kev xaiv zoo tshaj plaws rau high-temperature kilns thiab semiconductor substrates. Tau ntsib nrog kev sib tw ntawm kev hnav thiab tsim kua muag, nws qhov tawv tawv yog qhov thib ob tsuas yog pob zeb diamond, ua kom pom lub neej ua haujlwm ntev ntev hauv cov xwm txheej xws li cov tshuab mining thiab cov kav xa dej. Dab tsi yog qhov tsawg dua yog tias cov khoom siv no tuaj yeem tswj hwm nws cov xim ntuj txawm tias nyob hauv ib puag ncig corrosive xws li cov kua qaub muaj zog, ua kom haum rau cov kev xav tau tshwj xeeb ntawm cov khoom siv tshuaj.
Nrog rau txoj kev loj hlob ntawm lub zog tshiab kev lag luam, silicon carbide ceramics tau qhib rau thaj chaw thov tshiab. Hauv kev tsim hluav taws xob photovoltaic, nws dhau los ua cov khoom siv tiv thaiv huab cua zoo heev; Ntawm cov lithium roj teeb ntau lawm kab, nws tau hloov mus rau high-precision sintered daim hlau. Qhov kev muaj peev xwm "hloov ciam teb" no yog los ntawm nws qhov kev ua tau zoo sib xyaw ua ke - nws tuaj yeem tiv taus qhov kub thiab txias ntawm 1350 ℃ thiab ua haujlwm ruaj khov hauv qhov chaw txias heev ntawm -60 ℃.
Raws li cov kws tshaj lij kev koom tes hauv kev lag luam ntawm silicon carbide ceramics, peb tsis tu ncua optimize cov ntaub ntawv formulations thiab sintering txheej txheem, thaum tuav peb cov tsoos zoo, tas li txhim kho lub zog txhua yam thiab qhov tseeb ntawm cov ntaub ntawv. Los ntawm cov khoom siv raw cov ntaub ntawv sib piv thiab cov cuab yeej tshiab sintering, peb cov khoom tau txhim kho kev ntseeg tau zoo nyob rau hauv kev ua haujlwm nyuaj, muab cov khoom siv ntau dua lav rau cov khoom siv niaj hnub no.
Xaiv cov khoom siv ceramic yog qhov tseem ceeb nrhiav kev sib npaug ntawm kev ua haujlwm thiab tus nqi. Silicon carbide ceramics, nrog rau lawv cov txiaj ntsig zoo ntawm cov txiaj ntsig zoo, tau rov hais dua cov qauv ntawm kev tsim khoom lag luam - txo qhov hloov zaus nrog lub neej ntev, txo cov nqi kho nrog kev ua haujlwm ruaj khov dua, thiab yooj yim xaiv cov khoom siv nrog ntau yam kev siv. Qhov no tej zaum yuav yog vim li cas vim li cas ntau thiab ntau tus engineers tau teev nws raws li cov khoom nyiam.
Thaum peb tham txog kev lag luam kev vam meej, cov khoom siv innovation feem ntau yog qhov tseem ceeb tshaj plaws thiab tseem ceeb ntawm kev ua tiav. Kev hloov pauv tas mus li ntawm silicon carbide ceramics tsis yog tsuas yog sawv cev rau kev ua tiav hauv cov thev naus laus zis ceramic, tab sis kuj hais txog lwm qhov kev nce qib hauv kev tsim khoom lag luam. Nyob rau lub sijhawm no ntawm kev nrhiav kev ua tau zoo tshaj plaws, qhov "xav" cov khoom siv ceramic yog qhib qhov kev xav tshiab rau kev tsim khoom niaj hnub no.
Post lub sij hawm: May-06-2025