Silicon carbide, vim nws cov khoom ruaj khov, thermal conductivity, qis coefficient ntawm thermal expansion, thiab zoo heev hnav tsis kam, muaj ntau yam kev siv dua li siv los ua abrasive. Piv txwv li, txheej sab hauv phab ntsa ntawm turbine impellers los yog lub tog raj kheej thaiv nrog silicon carbide hmoov siv cov txheej txheem tshwj xeeb tuaj yeem txhim kho lawv cov hnav tsis kam thiab ua kom lawv lub neej ua haujlwm ntev li 1-2 zaug. High-qib refractory cov ntaub ntawv ua los ntawm silicon carbide yog thermally shock resistant, me me, hnyav, siab zog, thiab lub zog-ntau. Qib qis silicon carbide (muaj kwv yees li 85% SiC) yog ib qho zoo heev deoxidizer, uas tuaj yeem ua kom cov hlau ua kom nrawm thiab pab tswj cov tshuaj muaj pes tsawg leeg, yog li txhim kho steel zoo. Tsis tas li ntawd, silicon carbide yog dav siv nyob rau hauv kev tsim cov silicon carbide cua sov ntsiab lus.
Silicon carbide muaj qhov nyuaj heev, nrog Mohs hardness ntawm 9.5, thib ob tsuas yog pob zeb diamond (10), lub pob zeb nyuaj tshaj plaws hauv ntiaj teb. Nws muaj cov thermal conductivity zoo heev, yog semiconductor, thiab tiv taus oxidation ntawm qhov kub thiab txias.
Silicon carbide muaj tsawg kawg yog 70 cov ntaub ntawv crystalline. -Silicon carbide yog hom khoom siv allomorphous, tsim ntawm qhov kub siab tshaj 2000 degree, thiab muaj cov qauv siv lead ua hexagonal (zoo ib yam li wurtzite). -Silicon carbide, nrog rau lub cubic siv lead ua qauv, zoo ib yam li pob zeb diamonds hauv qab no [103] . -Silicon carbide tau nyiam ntau yam hauv daim ntawv thov ntawm heterogeneous catalyst txhawb vim nws qhov tshwj xeeb ntawm thaj chaw siab dua li -Silicon carbide. Muaj lwm hom silicon carbide, μ-Silicon carbide, uas yog qhov ruaj khov tshaj plaws thiab ua rau lub suab zoo nkauj thaum ntaus. Txawm li cas los xij, tsis muaj ob hom ntawm silicon carbide no tau ua lag luam rau hnub no.
