Si3N4 608 Ferrosilicon Nitride

Flash combustion synthesis method: Kuj tseem hu ua txoj kev txuas txuas txuas txuas txuas txuas ntxiv, txoj kev no tau pib siv rau hauv thaj chaw ntawm cov hlau nitrides thiab tom qab ntawd nkag mus rau hauv cov ntaub ntawv refractory teb rau ferro silicon nitride. Nyob rau hauv txoj kev no, cov hmoov zoo ntawm ferro-silicon alloy reacts nrog ascending nitrogen gas txaus, tso ib tug loj npaum li cas ntawm tshav kub los tuav ib tug self-sustaining cov tshuaj tiv thaiv. Txoj kev sib xyaw flash combustion yog qhov ua tau zoo, thiab qhov tau txais ferro-silicon nitride tsis muaj silicon dawb. Cov khoom muaj siab purity thiab tsis tshua muaj nqi, ua rau nws haum rau loj-scale nruam ntau lawm.

Self-propagating high-temperature synthesis (SHS) method: Kuj hu ua combustion synthesis method, txoj kev no siv cov tshuaj exothermic heev ntawm cov reactants rau nws tus kheej cua sov thiab nws tus kheej-propagation rau synthesize cov ntaub ntawv. FeSiN npaj los ntawm txoj kev no muaj cov khoom xws li -Si3N4, -Si3N4, Si2N2O, thiab FexSi. Nws cov microstructure muaj tuab silicon nitride blocks npog nrog ib tug nyias zaj duab xis ntawm Si2N2O, nrog zoo silicon nitride crystals embedded nyob rau hauv tuab blocks. Txoj kev no muaj cov nqi qis thiab tsim nyog rau kev tsim khoom lag luam, tab sis nws muaj cov txheej txheem ua haujlwm nruj, cov txheej txheem nyuaj, tswj cov tshuaj tiv thaiv nitridation nyuaj, siab nitridation siab, cov cuab yeej siv siab, nyuaj rau kev tsim khoom tas mus li, thiab cov khoom lag luam qis.