Raws li ib tug seasoned tsum ntawm Graphite Cheebtsam, kuv twb pom ua ntej qhov kev thov loj hlob rau cov high - cov ntaub ntawv ua tau zoo nyob rau hauv ntau yam lag luam. Graphite Cheebtsam muab ib qho kev sib xyaw ua ke ntawm cov khoom uas ua rau lawv tseem ceeb hauv ntau daim ntawv thov. Hauv qhov blog no, kuv mam li piav qhia txog qhov kev ua tau zoo ntawm Graphite Cheebtsam, tshawb txog cov kev ntsuas tseem ceeb uas txheeb xyuas lawv qhov zoo thiab tsim nyog rau kev siv sib txawv.
Thermal conductivity
Ib qho ntawm cov txiaj ntsig tseem ceeb tshaj plaws rau Graphite Cheebtsam yog thermal conductivity. Graphite muaj cov thermal conductivity zoo heev, uas tso cai rau nws hloov cov cua sov kom zoo. Cov cuab yeej no yog qhov tseem ceeb hauv cov ntawv thov xws li hluav taws xob cua txias, qhov chaw ua kom sov zoo yog qhov tseem ceeb los tiv thaiv overheating thiab ua kom lub neej ntev ntawm cov khoom siv hluav taws xob.
Siab - Graphite Cheebtsam zoo tuaj yeem muaj cov thermal conductivity xws li 100 txog 1900 W / (m·K), nyob ntawm seb hom graphite thiab nws cov txheej txheem tsim khoom. Piv txwv li, pyrolytic graphite muaj siab heev nyob rau hauv - dav hlau thermal conductivity, ua rau nws zoo tagnrho rau daim ntaub ntawv uas tshav kub yuav tsum tau kis sai heev nyob rau hauv ib cheeb tsam loj. Thaum xaiv Graphite Cheebtsam rau thermal tswj daim ntawv thov, nws yog ib qho tseem ceeb uas yuav tau xav txog cov kev cai thermal tshwj xeeb ntawm lub system. Ib qho kev tivthaiv nrog cov thermal conductivity tuaj yeem txhim kho tag nrho cov kev ua haujlwm ntawm lub tshuab ua kom txias, txo kev siv hluav taws xob thiab ua kom lub neej ntev ntawm cov khoom siv.
Hluav taws xob conductivity
Graphite kuj yog ib qho hluav taws xob zoo heev. Nws cov hluav taws xob conductivity yog ib qho tseem ceeb ntawm kev ua tau zoo, tshwj xeeb tshaj yog nyob rau hauv daim ntawv thov xws li roj hlwb thiab hluav taws xob tiv tauj. Hauv cov roj hlwb, Roj Cell Graphite Bipolar Plate ua lub luag haujlwm tseem ceeb hauv kev ua hluav taws xob ntawm cov anode thiab cathode. Lub phaj bipolar yuav tsum muaj hluav taws xob tsis tshua muaj hluav taws xob kom txo qis hluav taws xob poob thiab txhim kho tag nrho cov txiaj ntsig ntawm cov roj hluav taws xob.
Cov hluav taws xob conductivity ntawm graphite tuaj yeem sib txawv, feem ntau yog li ntawm 100 txog 1000 S / cm. Cov yam ntxwv xws li qib ntawm graphitization, impurity cov ntsiab lus, thiab cov qauv siv lead ua tuaj yeem cuam tshuam cov hluav taws xob conductivity ntawm Graphite Cheebtsam. Thaum xaiv Graphite Cheebtsam rau kev siv hluav taws xob, nws yog ib qho tseem ceeb los xyuas kom meej tias cov khoom ua tau raws li qhov yuav tsum tau muaj hluav taws xob conductivity specifications los lav qhov kev ua tau zoo.
Mechanical Strength
Mechanical zog yog lwm qhov tseem ceeb ntawm kev ua tau zoo rau Graphite Cheebtsam. Graphite Cheebtsam yuav tsum tau tiv taus ntau yam kev ntxhov siab thaum lawv ua haujlwm, xws li compression, nro, thiab khoov. Lub zog txhua yam ntawm graphite nyob ntawm nws qhov ntom, qhov loj me, thiab cov txheej txheem tsim khoom.
Piv txwv li, nplua - grained graphite feem ntau muaj zog dua txhua yam piv rau ntxhib - grained graphite. Nyob rau hauv cov ntawv thov uas cov khoom yuav raug rau cov neeg kho tshuab siab loads, xws li hauv machining lossis aerospace, siab - lub zog Graphite Cheebtsam yuav tsum. Lub zog compressive ntawm graphite tuaj yeem nyob ntawm 20 txog 200 MPa, thaum lub zog flexural tuaj yeem nyob ntawm 10 txog 100 MPa. Thaum xaiv Graphite Cheebtsam, nws yog ib qho tseem ceeb uas yuav tau xav txog cov neeg kho tshuab kev nyuaj siab uas cov khoom yuav ntsib nyob rau hauv daim ntawv thov tshwj xeeb thiab xaiv cov khoom uas tsim nyog txhua yam muaj zog.
Tshuaj tiv thaiv
Graphite yog heev resistant rau ntau yam tshuaj, ua rau nws haum rau siv nyob rau hauv corrosive ib puag ncig. Tshuaj tiv thaiv yog ib qho tseem ceeb ntawm kev ua tau zoo, tshwj xeeb tshaj yog nyob rau hauv kev siv xws li tshuaj ua thiab electroplating. Graphite Cheebtsam tuaj yeem tiv thaiv kev tawm tsam ntawm cov kua qaub, alkalis, thiab cov kuab tshuaj organic, kom ntseeg tau ntev - lub sijhawm ruaj khov thiab kev ntseeg siab hauv cov tshuaj lom neeg hnyav.
Cov tshuaj tiv thaiv ntawm graphite nyob ntawm nws cov purity thiab hom tshuaj uas nws raug. Siab - purity graphite feem ntau muaj tshuaj tiv thaiv zoo dua piv rau graphite nrog cov ntsiab lus siab impurity. Thaum siv Graphite Cheebtsam hauv kev siv tshuaj lom neeg, nws yog ib qho tseem ceeb uas yuav tsum xaiv cov khoom uas sib haum nrog cov tshuaj tshwj xeeb hauv ib puag ncig los tiv thaiv corrosion thiab ua kom muaj kev nyab xeeb thiab ua haujlwm ntawm cov txheej txheem.
Porosity
Porosity yog qhov kev ntsuas tseem ceeb rau Graphite Cheebtsam, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas muaj roj lossis kua permeability yog ib qho kev txhawj xeeb. Lub porosity ntawm graphite tuaj yeem cuam tshuam rau nws lub zog txhua yam, thermal conductivity, thiab tshuaj tsis haum. Tsawg - porosity graphite feem ntau nyiam nyob rau hauv cov ntawv thov uas yuav tsum muaj lub zog txhua yam thiab tshuaj lom neeg, thaum siab - porosity graphite yuav tsim nyog rau daim ntawv thov xws li roj diffusion txheej hauv roj hlwb.
Lub porosity ntawm graphite tuaj yeem tswj tau thaum lub sijhawm tsim khoom. Los ntawm kev kho cov ntaub ntawv raw thiab kev ua tsis tau, manufacturers tuaj yeem tsim Graphite Cheebtsam nrog ntau theem ntawm porosity kom tau raws li cov kev cai ntawm ntau yam kev siv. Thaum xaiv Graphite Cheebtsam, nws yog ib qho tseem ceeb uas yuav tau xav txog cov porosity raws li daim ntawv thov kev xav tau.
Kev siv ntawm Graphite Cheebtsam
Graphite Cheebtsam pom ntau yam kev siv vim lawv qhov kev ua tau zoo heev. Hauv kev lag luam photovoltaic, Graphite Chuck yog siv los tuav thiab tso silicon wafers thaum lub sijhawm tsim khoom. Lub siab thermal conductivity thiab txhua yam muaj zog ntawm graphite ua rau nws yog ib qho khoom siv zoo tshaj plaws rau daim ntawv thov no, kom ntseeg tau tias qhov chaw raug thiab hloov pauv tau zoo.
Hauv kev lag luam semiconductor, Graphite Cheebtsam tau siv ntau yam txheej txheem xws li wafer cua sov thiab cua txias. Qhov zoo tshaj plaws thermal thiab hluav taws xob conductivity ntawm graphite tso cai rau kev tswj qhov kub thiab txias thiab kev siv hluav taws xob zoo, uas yog qhov tseem ceeb rau kev tsim cov khoom siv hluav taws xob siab - zoo.
Hauv kev lag luam aerospace, Graphite Cheebtsam yog siv rau hauv siab - daim ntawv thov kub xws li cov khoom siv cav thiab cov khoom siv hluav taws xob. Lub siab thermal conductivity thiab mechanical zog ntawm graphite pab kom nws tiv taus huab cua kub thiab txhua yam kev ntxhov siab, ua kom muaj kev nyab xeeb thiab kev ntseeg siab ntawm aerospace systems.
Kev Tswj Xyuas Zoo thiab Kev Xeem
Txhawm rau kom ntseeg tau tias Graphite Cheebtsam ua tau raws li qhov yuav tsum tau ua cov qauv ntsuas, kev tswj xyuas nruj thiab cov txheej txheem kuaj yog qhov tseem ceeb. Cov neeg tsim khoom feem ntau siv ntau txoj hauv kev los ntsuas cov khoom ntawm Graphite Cheebtsam, suav nrog kev ntsuas thermal conductivity, ntsuas hluav taws xob conductivity, ntsuas lub zog txhua yam, thiab tshuaj xyuas tshuaj.
Kev ntsuas thermal conductivity feem ntau yog ua los ntawm laser flash txoj kev, uas ntsuas cov thermal diffusivity ntawm cov khoom thiab xam cov thermal conductivity. Kev ntsuas hluav taws xob conductivity yog ua los ntawm plaub - taw tes sojntsuam txoj kev, uas muab kev ntsuas tseeb ntawm cov khoom siv hluav taws xob. Kev ntsuam xyuas lub zog muaj xws li kev sim compression, kev sim flexural, thiab kev ntsuas tensile los ntsuas lub zog thiab qhov nruj ntawm cov khoom. Kev tshuaj xyuas tshuaj yog siv los txiav txim siab cov ntsiab lus impurity thiab tshuaj muaj pes tsawg leeg ntawm graphite, uas tuaj yeem cuam tshuam rau nws qhov kev ua tau zoo.
Xaus
Hauv kev xaus, cov qauv kev ua tau zoo ntawm Graphite Cheebtsam, suav nrog thermal conductivity, hluav taws xob conductivity, txhua yam muaj zog, tshuaj tiv thaiv, thiab porosity, yog qhov tseem ceeb uas txiav txim siab lawv qhov tsim nyog rau ntau yam kev siv. Raws li tus neeg muag khoom ntawm Graphite Components, peb tau cog lus los muab siab - cov khoom zoo uas ua tau raws li cov qauv kev ua tau zoo tshaj plaws.
Yog tias koj nyob hauv kev ua lag luam rau Graphite Cheebtsam thiab tab tom nrhiav rau tus neeg muag khoom txhim khu kev qha, peb xav koom nrog kev sib tham nrog koj. Peb pab pawg kws tshaj lij tuaj yeem pab koj xaiv qhov Graphite Cheebtsam raws li koj qhov kev thov tshwj xeeb. Hu rau peb hnub no los pib qhov kev sib tham thiab tshawb xyuas seb peb cov Graphite Cheebtsam tuaj yeem txhim kho kev ua tau zoo ntawm koj cov khoom thiab cov txheej txheem.
Cov ntaub ntawv
ASM Phau Ntawv Qhia, Volume 20: Kev Xaiv thiab Tsim Cov Khoom Siv.
Phau ntawv ntawm Carbon, Graphite, Pob zeb diamond thiab Fullerenes: Ua, Khoom, thiab kev siv.