Dab tsi yog Silicon Carbide ua los ntawm

Silicon carbide (SiC) yog cov khoom sib xyaw ua ke ntawm silicon thiab carbon. Nws tuaj yeem pom ib txwm muaj raws li cov ntxhia moissanite, tab sis nws feem ntau yog tsim los rau kev siv hauv kev lag luam.

Cov txheej txheem ntawm synthesizing silicon carbide muaj ob peb kauj ruam. Ua ntej, cov khoom siv silicon dioxide (SiO2) precursor yog tov nrog ib tug txo tus neeg sawv cev xws li carbon los yog graphite. Tom qab ntawd cov sib tov yog muab tso rau hauv lub cub tawg thiab muab tso rau hauv qhov kub thiab txias tshaj 1300 degrees Celsius, thaum lub sij hawm lub sij hawm lub SiO2 txo mus rau silicon.

Thaum cov khoom siv Si precursor tau tsim, nws reacts nrog cov pa roj carbon monoxide lossis graphite nyob rau hauv qhov sib tov los ua silicon carbide. Cov tshuaj tiv thaiv feem ntau tshwm sim ntawm qhov kub siab tshaj 2000 degrees Celsius thiab nyob rau hauv siab.

Cov txiaj ntsig ntawm silicon carbide tuaj yeem ua tiav los ntawm ntau hom kev siv xws li kub nias, sintering, thiab tshuaj vapor deposition. Cov txheej txheem no tuaj yeem siv los tsim ntau yam ntawm SiC cov ntaub ntawv nrog cov khoom sib txawv xws li ntom, porosity, thiab lub zog.

Silicon carbideNws muaj nuj nqis heev vim nws cov khoom tshwj xeeb nrog rau siab hardness, siab thermal conductivity, thiab tsis kam mus corrosion. Nws yog siv rau hauv ntau yam kev siv xws li cov cuab yeej txiav, cov khoom siv abrasive, refractories, thiab cov khoom siv hluav taws xob xws li cov khoom siv hluav taws xob semiconductor thiab cov khoom siv hluav taws xob kub kub.

Nyob rau hauv xyoo tas los no, silicon carbide tau txais kev saib xyuas ntau dua li cov khoom siv rau cov khoom siv hluav taws xob txuas ntxiv vim nws cov khoom siv hluav taws xob zoo dua. Nws yuav tsum ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov khoom siv hluav taws xob muaj txiaj ntsig zoo thiab txhim khu kev qha rau ntau yam kev siv xws li tsheb hluav taws xob, hluav taws xob txuas ntxiv mus, thiab cov chaw khaws ntaub ntawv.

Nyob rau hauv xaus, silicon carbide yog ib tug compound ua los ntawm silicon thiab carbon uas yog feem ntau synthesized rau industrial daim ntaub ntawv. Nws muaj nuj nqis rau nws cov khoom tshwj xeeb nrog rau siab hardness, siab thermal conductivity, thiab tsis kam mus corrosion. Nrog nws lub peev xwm los hloov pauv lub zog hluav taws xob hluav taws xob, silicon carbide tau npaj los ua cov khoom tseem ceeb hauv xyoo tom ntej.

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