Boron Nitride & Graphene conductivity sib piv
Apr 29, 2024
Dab tsi yog qhov zoo sib xws thiab qhov sib txawv ntawm boron nitride thiab graphene li cov khoom siv hluav taws xob siab, kub thiab corrosion resistant cov ntaub ntawv yog dab tsi? Yog xav paub ntxiv, thov nyeem ntxiv!
Boron nitride thiab graphene yog ob yam khoom tseem ceeb uas nthuav tawm cov khoom zoo heev. Boron nitride yog ib qho kev sib xyaw ua ke ntawm boron thiab nitrogen atoms, thiab nws muaj nyob rau hauv ntau hom xws li hexagonal boron nitride (h-BN) thiab cubic boron nitride (c-BN). Graphene, ntawm qhov tod tes, yog ib daim ntawv ob sab ntawm cov pa roj carbon uas muaj cov qauv hexagonal lattice.
Ob leeg boron nitride thiab graphene paub txog lawv cov hluav taws xob hluav taws xob siab thiab tau kawm dav dav rau lawv txoj kev siv hluav taws xob thiab lwm yam kev siv. Nyob rau hauv cov nqe lus ntawm lawv cov conductivity zog, ob qho tib si cov ntaub ntawv muaj siab electron txav, txhais tau hais tias electrons tuaj yeem txav los ntawm cov ntaub ntawv sai thiab zoo. Tsis tas li ntawd, lawv ob leeg pom zoo thermal conductivity, uas ua rau lawv muaj txiaj ntsig zoo rau kev siv xws li cov dab dej kub.
Txawm li cas los xij, muaj qee qhov sib txawv ntawm cov khoom siv hluav taws xob ntawm boron nitride thiab graphene. Graphene nthuav tawm qhov kub siab tshaj plaws hauv chav tsev ntawm txhua yam khoom siv thiab muaj qhov theoretical conductivity txog li 200, 000 S / cm. Qhov kev coj ua no yog vim nws cov qauv tshwj xeeb, uas tso cai rau cov khoom siv hluav taws xob txav mus los yam tsis muaj kev cuam tshuam tseem ceeb. Tsis tas li ntawd, graphene yog ib qho khoom siv muaj zog, hnav thiab hloov tau yooj yim uas tuaj yeem muab tau yooj yim rau hauv cov khoom siv hluav taws xob.
Boron nitride, ntawm qhov tod tes, nthuav tawm cov khoom qis dua li graphene tab sis tseem pom zoo thermal thiab hluav taws xob conductivity zog. Tsis tas li ntawd, h-BN muaj qhov dav bandgap, uas txhais tau hais tias nws tuaj yeem ua tus insulator hauv qee qhov kev siv. c-BN, ntawm qhov tod tes, yog cov khoom siv superhard thiab siv los ua cov cuab yeej txiav thiab txiav.
Hais txog lawv qhov zoo thiab qhov tsis zoo, boron nitride thiab graphene ob leeg muaj cov khoom tshwj xeeb uas ua rau lawv cov khoom siv tau zoo hauv qee yam kev siv. Graphene lub siab conductivity, lub teeb yuag, thiab yoog raws ua rau nws zoo tagnrho rau siv hauv hluav taws xob thiab lwm yam kev siv uas yuav tsum muaj cov ntaub ntawv ua tau zoo. Boron nitride lub siab thermal conductivity thiab dav bandgap ua rau nws muaj txiaj ntsig zoo rau ntau yam kev tswj xyuas thermal, suav nrog kev tsim cov insulators thiab semiconductors.
Zuag qhia tag nrho, ob qho tib si boron nitride thiab graphene nthuav tawm cov khoom zoo heev, thiab lawv cov khoom tshwj xeeb ua rau lawv cov ntaub ntawv muaj txiaj ntsig hauv ntau yam kev siv. Raws li kev tshawb fawb nyob rau hauv ob qho tib si cov ntaub ntawv txuas ntxiv, nws zoo li yuav pom cov ntawv thov tshiab thiab siv rau cov ntaub ntawv no.
Shengyang New Material Co., Ltd. tau cog lus rau kev tsim cov boron nitride thiab boron nitride ua cov khoom, thiab tuaj yeem kho ntau yam boron nitride insulating ceramic qhov chaw raws li cov neeg siv khoom xav tau. Tiv tauj peb yog tias tsim nyog.
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