Silicon carbide (SiC) yog ib hom khoom siv ceramic uas muaj peev xwm siv dav, uas muaj cov thermal conductivity zoo, tshuaj lom neeg ruaj khov thiab kub tsis kam.Txhawm rau txhim kho kev ua tau zoo thiab kev siv ntau yam ntawm silicon carbide, tshuaj vapor deposition (CVD) technology tau dhau los ua ib txoj hauv kev tseem ceeb los npaj silicon carbide txheej.
Silicon carbide cvd txheej tuaj yeem tsim cov khaub ncaws hnav thiab tuab tiv thaiv txheej thiab muaj ntau yam khoom zoo tshaj plaws.Ua ntej, cov txheej txheem silicon carbide muaj qhov hardness siab heev thiab hnav tsis kam, uas tuaj yeem tiv taus hnav thiab khawb thiab tiv thaiv substrate los ntawm hnav thiab corrosion.Thib ob, silicon carbide txheej muaj qhov kub thiab txias tsis kam thiab tseem tuaj yeem ua kom muaj zog txhua yam thiab tshuaj lom neeg ruaj khov nyob rau hauv qhov kub thiab txias.Qhov no ua rau silicon carbide CVD txheej dav siv nyob rau hauv aerospace, zog, tshuaj thiab lwm yam kev lag luam, xws li rau combustion chamber puab phab ntsa txheej, siab kub gas sensors thiab kub kub hluav taws xob khoom siv.
Tsis tas li ntawd, silicon carbide txheej kuj muaj cov thermal conductivity thiab hluav taws xob rwb thaiv tsev zoo.Thermal conductivity yog hais txog cov khoom muaj peev xwm ua kom sov, thiab cov thermal conductivity ntawm silicon carbide CVD coatings ua rau lawv zoo tagnrho rau thermal tswj daim ntaub ntawv, xws li rau radiators thiab cov kav dej kub.Hluav taws xob rwb thaiv tsev hais txog kev rwb thaiv tsev ntawm cov khoom siv rau tam sim no, thiab cov hluav taws xob zoo ntawm silicon carbide txheej ua rau nws siv dav hauv cov khoom siv hluav taws xob, xws li hluav taws xob hluav taws xob rwb thaiv tsev txheej thiab cov khoom ntim hluav taws xob.
Thaum npaj silicon carbide CVD txheej, cov pa roj carbon monoxide muaj xws li cov khoom siv silicon thiab cov pa roj carbon xws li methane thiab silane.Cov pa roj no tsim ib txheej nyias ntawm silicon carbide rau ntawm qhov chaw ntawm lub substrate los ntawm CVD cov tshuaj tiv thaiv.Los ntawm kev kho cov tshuaj tiv thaiv, xws li qhov kub thiab txias, cua siab thiab roj ntws, lub thickness, morphology thiab cov khoom ntawm txheej tuaj yeem tswj tau.
Nyob rau hauv cov ntsiab lus, silicon carbide CVD txheej muaj ib tug xov tooj ntawm superior zog, nrog rau siab hardness, hnav tsis kam, kub tsis kam, thermal conductivity thiab hluav taws xob rwb thaiv tsev.Cov khoom no ua rau silicon carbide coatings muaj ntau yam kev siv hauv ntau lub teb, suav nrog aerospace, lub zog, tshuaj lom neeg thiab hluav taws xob.Nrog rau kev txhim kho txuas ntxiv thiab kev txhim kho ntawm CVD thev naus laus zis, kev ua haujlwm ntawm silicon carbide txheej yuav raug txhim kho ntxiv, muab kev ua tau zoo rau ntau daim ntawv thov hauv ntau thaj chaw.
Post lub sij hawm: Dec-18-2023