Cov khoom siv silicon nitride ceramic ua li cas? Muaj ob txoj hauv kev tsim khoom, uas yog cov txheej txheem ua kom tsis haum thiab cov txheej txheem kub nias sintering. Cov tshuaj tiv thaiv kev ua txhaum txheej txheem yog tsim cov hmoov silicon lossis sib xyaw ntawm silicon hmoov thiab silicon nitride hmoov raws li cov txheej txheem kev tsim khoom ntawm cov khoom lag luam ceramic. Tom qab ntawd hauv cov cua sov nitriding, nws tau npaj ua ntej nitrided ntawm 1150 ~ 1200 ℃, tom qab tau txais qee lub zog, nws tuaj yeem ua haujlwm ntawm lub tshuab cuab yeej, thiab tom qab ntawd ntxiv nitriding ntawm 1350 ~ 1450 ℃ rau 18 ~ 36h, txog thaum txhua yam dhau los ua silicon nitride hmoov. . Cov khoom yog li tau txais muaj qhov ntev thiab qhov ntim ruaj khov. Cov txheej txheem kub nias sintering yog nias silicon nitride hmoov thiab me me ntawm cov tshuaj ntxiv (xws li MgO, Al2O3, MgF2, AlF3 lossis Fe2O3, thiab lwm yam) ntawm qhov siab tshaj 19.6MPa thiab sintering raws li qhov xwm txheej ntawm 1600 ~ 1700 ℃. Feem ntau, cov khoom tsim los ntawm kub nias sintering muaj qhov ntom ntom ntom ntom thiab ua haujlwm tau zoo dua li cov khoom tsim los ntawm cov tshuaj tiv thaiv sintering.
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