Los ntawm kev tshawb fawb ntawm graphite crucible cov kws tshaj lij, nws pom tau tias cov txheej txheem sib txuam nrog cov qauv tsim nyog thiab cov yam ntxwv ua haujlwm zoo gradient tuaj yeem npaj tau los ntawm kev siv cov hmoov hlau silicon ua cov khoom siv impregnating thiab siv txoj kev embedding nyob rau hauv lub kaw sagger, uas yog, SiC hloov txheej SiC nplua txheej Si-SiO2 txheej txheej txheej. Nrog rau qhov txuas ntxiv ntawm qhov kub-kub tuav lub sij hawm, txheej txheej thickness thiab SiO2 cov ntsiab lus ntawm txheej txheej dominated los ntawm SiC yog ntxiv. Qhov kev sib raug zoo ntawm cov txheej txheej thiab cov substrate yog cov tshuaj lom neeg feem ntau, uas muaj ob qho tib si kev sib raug zoo thiab kev sib raug zoo siab. Cov oxidation tsis kam ntawm coated graphite crucible tau sim. Cov txiaj ntsig kev sim qhia tau hais tias cov txheej txheem tiv thaiv oxidation tau npaj los ntawm cov txheej txheem embedding muaj kev ua haujlwm zoo los tiv thaiv oxidation ntawm 1100 degree -1300 degree . Cov txheej txheem ib leeg ua los ntawm dip txheej yog SiC thiab Si3N4.
Cov txiaj ntsig los tiv thaiv oxidation tau pom tias ib txheej txheej muaj cov txiaj ntsig zoo los tiv thaiv oxidation, tab sis vim qhov sib txawv ntawm qhov nthuav dav coefficient ntawm txheej thiab substrate, thermal shock tsis kam ntawm txheej yog pluag, thiab nws tsuas yog poob. Hauv kev npaj cov txheej txheem sib xyaw, cov txheej txheej sab hauv feem ntau yog SiC, thiab txheej txheej yog MoSi2 thiab Al2O3, feem.
Cov nyhuv antioxidant tsis pom tseeb hauv thaj tsam ntawm 1000 degree -1300 degree . Raws li kev ntsuas kev ua tau zoo ntawm graphite txheej, kev tiv thaiv oxidation txheej ntawm graphite crucible npaj los ntawm embedding txoj kev tuaj yeem txhim kho oxidation tsis kam ntawm graphite crucible, txo cov porosity ntawm graphite crucible matrix, thiab txhim kho lub zog flexural ntawm graphite crucible.