Nyob rau hauv lub ntiaj teb kev lag luam niaj hnub no uas tab tom loj hlob sai, daim ntawv thov ntawmcov khoom siv av nplaum siab heevxws lisilicon carbide ceramicstab tom dhau los ua ntau dua thiab ntau dua. Cov ntaub ntawv tsis yog hlau no, suav nrog silicon nitride ceramics, alumina ceramics thiab lwm yam kev hloov pauv siab heev, tab tom hloov pauv ntau yam teb nrog lawv cov khoom zoo tshaj plaws thiab ntau yam kev siv.
Ib qho ntawm cov chaw tseem ceeb uas cov khoom siv ua los ntawm cov av nplaum siab heev muaj feem cuam tshuam loj heev yog nyob rau hauv kev ntxuav thiab kev thauj mus los hauv cov qhov av thee. Ntawm lawv, cov ntaub thaiv cyclone thiab cov yeeb nkab yog ua los ntawm alumina ceramics thiab silicon carbide ceramics, uas ua rau lub neej ntawm cov khoom siv tsis yooj yim puas. Qhov no tsis yog tsuas yog ua rau lub tshuab ruaj khov xwb, tab sis kuj pab txhim kho kev ua haujlwm zoo thiab txuag cov nqi.
Tsis tas li ntawd xwb, qhov ua tau ntau yam ntawm cov khoom siv ceramic siab heev nthuav dav mus rau kev siv precision thoob plaws ntau yam lag luam. Silicon nitride ceramic thiab zirconia ceramic precision parts yog siv dav vim lawv cov kev ua tau zoo heev hauv cov chaw ib puag ncig hnyav. Nws qhov nyuaj tshwj xeeb, thermal stability thiab corrosion tsis kam ua rau nws zoo tagnrho rau kev siv hauv cov khoom tseem ceeb uas kev ntseeg siab thiab qhov tseeb yog qhov tseem ceeb.
Hauv kev tsim khoom, kev siv cov khoom siv ceramics siab heev qhib cov cib fim tshiab rau kev txhim kho cov khoom zoo thiab kev ua tau zoo. Tshwj xeeb, silicon carbide ceramics yog siv dav vim lawv cov thermal conductivity zoo heev thiab thermal shock tsis kam. Qhov no ua rau lawv muaj txiaj ntsig zoo rau kev siv xws li kev ua haujlwm kub siab, qhov twg cov ntaub ntawv ib txwm tuaj yeem tsis ruaj khov nyob rau hauv cov xwm txheej hnyav.
Ntxiv rau qhov ntawd, kev lag luam aerospace thiab automotive kuj tau txais txiaj ntsig los ntawm cov khoom siv ceramics siab heev. Silicon nitride ceramics muaj lub zog siab thiab tiv taus kev poob siab thermal thiab siv dav hauv cov khoom siv cav, cov txheej txheem propulsion tshiab thiab cov thev naus laus zis nres siab heev. Qhov no tsis yog tsuas yog hais txog kev hloov pauv ntawm cov khoom siv ceramics siab heev, tab sis kuj tseem yog lawv lub luag haujlwm tseem ceeb hauv kev tsav tsheb tshiab thiab kev nce qib hauv cov teb high-tech no.
Hauv ntej, kev siv dav dav ntawm cov khoom siv ceramics xws li silicon carbide ceramics, silicon nitride ceramics, thiab alumina ceramics tab tom hloov kho dua tshiab rau thaj chaw kev lag luam. Txij li kev txhim kho cov khoom siv ruaj khov hauv kev ua haujlwm khawb thee mus rau kev ua kom muaj kev ua haujlwm raug hauv ntau qhov chaw, cov ntaub ntawv no tau ua pov thawj tias tseem ceeb. Thaum cov lag luam txuas ntxiv thawb cov ciam teb ntawm kev ua tau zoo thiab kev ua haujlwm tau zoo, cov khoom siv ceramics siab heev yuav tsis muaj qhov tsis ntseeg nyob rau pem hauv ntej ntawm kev tsim kho tshiab, tsav kev nce qib thiab tsim lub neej yav tom ntej ntawm kev lag luam niaj hnub.
Lub sijhawm tshaj tawm: Lub Rau Hli-12-2024