Carbon bonded silicon carbide crucible, yog dav siv nyob rau hauv high temperature laboratories. Cov crucibles no muaj ntau yam zoo xws li lub zog siab thiab ua haujlwm rau deformation thiab tawg ntawm qhov kub thiab txias. Txawm li cas los xij, nws tsim nyog sau cia tias lawv kuj muaj qee qhov tsis zoo uas yuav tsum tau xav txog.
Ib qho ntawm qhov tsis zoo ntawm silicon carbide crucibles yog lawv cov fragility. Cov crucibles no feem ntau tawg thaum raug rau cov neeg kho tshuab poob siab thaum siv. Thaum puas lawm, lawv tuaj yeem ua rau kev sim ua tsis tiav lossis cuam tshuam qhov tseeb ntawm cov ntaub ntawv sim. Qhov kev tsis zoo no yuav tsum raug coj mus rau hauv tus account thiab tsim nyog ceev faj thaum tuav thiab siv.
Lwm qhov tsis zoo ntawm silicon carbide crucibles yog tias lawv nquag oxidation tshwm sim ntawm qhov kub thiab txias. Thaum raug kub hnyiab, txheej oxide tuaj yeem tsim rau ntawm qhov chaw ntawm lub crucible, uas tuaj yeem cuam tshuam nrog kev sim. Nws yog ib qho tseem ceeb los tiv thaiv qhov oxidation los ntawm kev siv cov kev tiv thaiv, xws li npog lub crucible nto nrog ib txheej tiv thaiv.
Tsis tas li ntawd, silicon carbide crucibles raug rau qee yam kev txwv vim yog yam xws li kev tsim khoom thiab nqi. Cov kev txwv no tuaj yeem txwv qhov loj, zoo li, thiab muaj peev xwm ntawm lub crucible. Yog li ntawd, cov kws tshawb fawb thiab cov tuam txhab tsim khoom yuav tsum xav txog cov kev txwv no thaum xaiv crucibles rau lawv cov kev cai tshwj xeeb.
Txhawm rau daws qhov tsis txaus ntawm silicon carbide crucibles, muaj ntau txoj kev daws teeb meem. Ua ntej tshaj plaws, txhawm rau txhim kho lub neej kev pabcuam ntawm lub crucible, cov txheej txheem tuaj yeem siv los ntxiv dag zog rau cov phab ntsa sab hauv kom nws hnav-tiv taus thiab ruaj khov. Qhov no pab tiv thaiv kev tawg thiab ncua lub neej ntawm crucible.
Thib ob, txhawm rau tiv thaiv oxidation, txheej txheej tiv thaiv tuaj yeem siv rau saum npoo ntawm crucible. Cov txheej no tiv thaiv lub crucible los ntawm reacting nrog oxygen ntawm qhov kub thiab txias, yog li tiv thaiv kev tsim ntawm oxide txheej.
Thaum kawg, txhawm rau kov yeej cov kev txwv ntawm silicon carbide crucibles, tus qauv tsim tuaj yeem ua kom zoo dua qub thiab cov txheej txheem tsim khoom siv ntau dua. Los ntawm kev ua li ntawd, cov duab loj dua, sib sib zog nqus, thiab ntau dua tuaj yeem tsim tau, tso cai rau kev siv cov crucibles hauv ntau qhov kev sim teeb tsa. Tsis tas li ntawd, lwm cov ntaub ntawv xws li kub-kub ceramics yuav raug txiav txim siab los hloov silicon carbide crucibles.
Hauv kev xaus, silicon carbide crucibles muaj qee qhov tsis zoo, tab sis lawv daim ntawv thov hauv chav kuaj tseem muaj txiaj ntsig zoo. Tag nrho cov kev ua tau zoo thiab ntau yam ntawm silicon carbide crucibles tuaj yeem txhim kho los ntawm kev siv cov kev ntsuas tsim nyog thiab kev ua kom zoo los daws lawv cov brittleness, susceptibility rau oxidation, thiab kev txwv. Cov kws tshawb fawb thiab cov tuam txhab tsim khoom yuav tsum ua tib zoo xav txog cov xwm txheej no thaum xaiv cov kev sim ntsuas kub siab.
Post lub sij hawm: Nov-14-2023