cov khoom ntawm silicon carbide
Silicon carbide (SiC) yog cov khoom siv semiconductor nrog cov khoom zoo heev. Nws muaj qhov nyuaj siab (3000 kg / mm² ntawm K-hardness), thib ob tsuas yog pob zeb diamond, yog li nws tuaj yeem siv los txiav cov ntaub ntawv nyuaj xws li rubies1. Lub thermal conductivity ntawm silicon carbide tshaj li ntawm tooj liab hlau, uas yog 3 npaug ntawm silicon (Si) thiab 8 ~ 10 npaug ntawm gallium arsenide (GaAs), uas yog ib qho tseem ceeb rau cov cua kub dissipation ntawm high-power devices1. Tsis tas li ntawd, silicon carbide yog tshuaj ruaj khov thiab tiv taus yuav luag txhua tus neeg paub corrosive ntawm chav tsev kub 1. Cov khoom ntawm silicon carbide no ua rau nws muaj ntau yam kev thov kev cia siab nyob rau hauv ib puag ncig hnyav xws li kub, siab siab, siab zaus thiab siab zog.
Hardness: Silicon carbide muaj qhov nyuaj heev, txog 80% ntawm cov pob zeb diamond, uas ua rau nws tseem ceeb rau cov khoom siv abrasives thiab hnav-resistant.
Kub-kub kuj: Silicon carbide qhia tau zoo heev ntawm qhov kub thiab txias thiab tuaj yeem ua haujlwm ruaj khov ntawm qhov kub txog li 2700 degree rau lub sijhawm ntev, ua rau nws tsim nyog rau ntau yam kev siv hauv qhov chaw kub kub.
Thermal conductivity: Silicon carbide muaj cov thermal conductivity siab, uas pab ua kom muaj kev hloov pauv ntawm cov cua sov. Qhov no yog qhov tseem ceeb hauv cov khoom siv hluav taws xob thiab lwm yam kev siv uas yuav tsum tau hloov cov cua sov kom zoo.
Txoj kev npaj ntawm silicon carbide
Silicon carbide feem ntau yog tsim los ntawm smelting quartz xuab zeb, roj av coke (los yog coke coke), ntoo chips (ntsev yuav tsum tau ntxiv thaum tsim ntsuab silicon carbide) thiab lwm yam raw cov ntaub ntawv nyob rau hauv ib tug kuj kub kub. Hauv kev tsim khoom, silicon carbide tau muab faib ua dub silicon carbide thiab ntsuab silicon carbide, ob qho tib si yog hexagonal crystals nrog qhov ntom ntawm 3.20 ~ 3.25.
Hu rau
Soyee Cheng
ZHEN INTERNATIONAL CO., LTD
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Cim npe nrov: Tuam Tshoj silicon carbide sic98.5 manufacturers, lwm tus neeg, Hoobkas